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Issue 10825012: chromeos: Fix pixelated icons in app list and launcher (part 2) (by xiyuan) (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: .. Created 8 years, 4 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "chrome/browser/extensions/image_loading_tracker.h" 5 #include "chrome/browser/extensions/image_loading_tracker.h"
6 6
7 #include <string> 7 #include <string>
8 #include <vector> 8 #include <vector>
9 9
10 #include "base/bind.h" 10 #include "base/bind.h"
11 #include "base/file_util.h" 11 #include "base/file_util.h"
12 #include "chrome/browser/ui/webui/extensions/extension_icon_source.h" 12 #include "chrome/browser/ui/webui/extensions/extension_icon_source.h"
13 #include "chrome/common/chrome_notification_types.h" 13 #include "chrome/common/chrome_notification_types.h"
14 #include "chrome/common/extensions/extension.h" 14 #include "chrome/common/extensions/extension.h"
15 #include "chrome/common/extensions/extension_constants.h" 15 #include "chrome/common/extensions/extension_constants.h"
16 #include "chrome/common/extensions/extension_resource.h" 16 #include "chrome/common/extensions/extension_resource.h"
17 #include "content/public/browser/browser_thread.h" 17 #include "content/public/browser/browser_thread.h"
18 #include "content/public/browser/notification_service.h" 18 #include "content/public/browser/notification_service.h"
19 #include "grit/component_extension_resources_map.h" 19 #include "grit/component_extension_resources_map.h"
20 #include "grit/theme_resources.h" 20 #include "grit/theme_resources.h"
21 #include "skia/ext/image_operations.h" 21 #include "skia/ext/image_operations.h"
22 #include "third_party/skia/include/core/SkBitmap.h" 22 #include "third_party/skia/include/core/SkBitmap.h"
23 #include "ui/base/resource/resource_bundle.h"
23 #include "ui/gfx/image/image.h" 24 #include "ui/gfx/image/image.h"
24 #include "ui/gfx/image/image_skia.h"
25 #include "ui/gfx/image/image_skia_rep.h" 25 #include "ui/gfx/image/image_skia_rep.h"
26 #include "webkit/glue/image_decoder.h" 26 #include "webkit/glue/image_decoder.h"
27 27
28 using content::BrowserThread; 28 using content::BrowserThread;
29 using extensions::Extension; 29 using extensions::Extension;
30 30
31 namespace {
32
33 struct ComponentExtensionResource {
34 const char* extension_id;
35 const int resource_id;
36 };
37
38 const ComponentExtensionResource kSpecialComponentExtensionResources[] = {
39 { extension_misc::kWebStoreAppId, IDR_WEBSTORE_ICON },
40 { extension_misc::kChromeAppId, IDR_PRODUCT_LOGO_128 },
41 };
42
43 // Finds special component extension resource id for given extension id.
44 bool FindSpecialExtensionResourceId(const std::string& extension_id,
45 int* out_resource_id) {
46 for (size_t i = 0; i < arraysize(kSpecialComponentExtensionResources); ++i) {
47 if (extension_id == kSpecialComponentExtensionResources[i].extension_id) {
48 if (out_resource_id)
49 *out_resource_id = kSpecialComponentExtensionResources[i].resource_id;
50 return true;
51 }
52 }
53
54 return false;
55 }
56
57 bool ShouldResizeImageRepresentation(
58 ImageLoadingTracker::ImageRepresentation::ResizeMethod resize_method,
59 const gfx::Size& decoded_size,
60 const gfx::Size& desired_size) {
61 switch (resize_method) {
62 case ImageLoadingTracker::ImageRepresentation::ALWAYS_RESIZE:
63 return decoded_size != desired_size;
64 case ImageLoadingTracker::ImageRepresentation::RESIZE_WHEN_LARGER:
65 return decoded_size.width() > desired_size.width() ||
66 decoded_size.height() > desired_size.height();
67 default:
68 NOTREACHED();
69 return false;
70 }
71 }
72
73 } // namespace
74
31 //////////////////////////////////////////////////////////////////////////////// 75 ////////////////////////////////////////////////////////////////////////////////
32 // ImageLoadingTracker::Observer 76 // ImageLoadingTracker::Observer
33 77
34 ImageLoadingTracker::Observer::~Observer() {} 78 ImageLoadingTracker::Observer::~Observer() {}
35 79
36 //////////////////////////////////////////////////////////////////////////////// 80 ////////////////////////////////////////////////////////////////////////////////
37 // ImageLoadingTracker::ImageInfo 81 // ImageLoadingTracker::ImageRepresentation
38 82
39 ImageLoadingTracker::ImageInfo::ImageInfo( 83 ImageLoadingTracker::ImageRepresentation::ImageRepresentation(
40 const ExtensionResource& resource, gfx::Size max_size) 84 const ExtensionResource& resource,
41 : resource(resource), max_size(max_size) { 85 ResizeMethod resize_method,
86 const gfx::Size& desired_size,
87 ui::ScaleFactor scale_factor)
88 : resource(resource),
89 resize_method(resize_method),
90 desired_size(desired_size),
91 scale_factor(scale_factor) {
42 } 92 }
43 93
44 ImageLoadingTracker::ImageInfo::~ImageInfo() { 94 ImageLoadingTracker::ImageRepresentation::~ImageRepresentation() {
45 } 95 }
46 96
47 //////////////////////////////////////////////////////////////////////////////// 97 ////////////////////////////////////////////////////////////////////////////////
48 // ImageLoadingTracker::PendingLoadInfo 98 // ImageLoadingTracker::PendingLoadInfo
49 99
50 ImageLoadingTracker::PendingLoadInfo::PendingLoadInfo() 100 ImageLoadingTracker::PendingLoadInfo::PendingLoadInfo()
51 : extension(NULL), 101 : extension(NULL),
52 cache(CACHE), 102 cache(CACHE),
53 pending_count(0) { 103 pending_count(0) {
54 } 104 }
55 105
56 ImageLoadingTracker::PendingLoadInfo::~PendingLoadInfo() {} 106 ImageLoadingTracker::PendingLoadInfo::~PendingLoadInfo() {}
57 107
58 //////////////////////////////////////////////////////////////////////////////// 108 ////////////////////////////////////////////////////////////////////////////////
59 // ImageLoadingTracker::ImageLoader 109 // ImageLoadingTracker::ImageLoader
60 110
61 // A RefCounted class for loading images on the File thread and reporting back 111 // A RefCounted class for loading bitmaps/image reps on the File thread and
62 // on the UI thread. 112 // reporting back on the UI thread.
63 class ImageLoadingTracker::ImageLoader 113 class ImageLoadingTracker::ImageLoader
64 : public base::RefCountedThreadSafe<ImageLoader> { 114 : public base::RefCountedThreadSafe<ImageLoader> {
65 public: 115 public:
66 explicit ImageLoader(ImageLoadingTracker* tracker) 116 explicit ImageLoader(ImageLoadingTracker* tracker)
67 : tracker_(tracker) { 117 : tracker_(tracker) {
68 CHECK(BrowserThread::GetCurrentThreadIdentifier(&callback_thread_id_)); 118 CHECK(BrowserThread::GetCurrentThreadIdentifier(&callback_thread_id_));
69 DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::FILE)); 119 DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::FILE));
70 } 120 }
71 121
72 // Lets this class know that the tracker is no longer interested in the 122 // Lets this class know that the tracker is no longer interested in the
73 // results. 123 // results.
74 void StopTracking() { 124 void StopTracking() {
75 tracker_ = NULL; 125 tracker_ = NULL;
76 } 126 }
77 127
78 // Instructs the loader to load a task on the File thread. 128 // Instructs the loader to load a task on the File thread.
79 void LoadImage(const ExtensionResource& resource, 129 void LoadImage(const ImageRepresentation& image_info, int id) {
80 const gfx::Size& max_size,
81 int id) {
82 DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::FILE)); 130 DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::FILE));
83 BrowserThread::PostTask( 131 BrowserThread::PostTask(
84 BrowserThread::FILE, FROM_HERE, 132 BrowserThread::FILE, FROM_HERE,
85 base::Bind(&ImageLoader::LoadOnFileThread, this, resource, 133 base::Bind(&ImageLoader::LoadOnFileThread, this, image_info, id));
86 max_size, id));
87 } 134 }
88 135
89 void LoadOnFileThread(const ExtensionResource& resource, 136 void LoadOnFileThread(const ImageRepresentation& image_info, int id) {
90 const gfx::Size& max_size,
91 int id) {
92 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); 137 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
93 138
94 // Read the file from disk. 139 // Read the file from disk.
95 std::string file_contents; 140 std::string file_contents;
96 FilePath path = resource.GetFilePath(); 141 FilePath path = image_info.resource.GetFilePath();
97 if (path.empty() || !file_util::ReadFileToString(path, &file_contents)) { 142 if (path.empty() || !file_util::ReadFileToString(path, &file_contents)) {
98 ReportBack(NULL, resource, gfx::Size(), id); 143 ReportBack(NULL, image_info, gfx::Size(), id, false);
99 return; 144 return;
100 } 145 }
101 146
102 // Decode the image using WebKit's image decoder. 147 // Decode the bitmap using WebKit's image decoder.
103 const unsigned char* data = 148 const unsigned char* data =
104 reinterpret_cast<const unsigned char*>(file_contents.data()); 149 reinterpret_cast<const unsigned char*>(file_contents.data());
105 webkit_glue::ImageDecoder decoder; 150 webkit_glue::ImageDecoder decoder;
106 scoped_ptr<SkBitmap> decoded(new SkBitmap()); 151 scoped_ptr<SkBitmap> decoded(new SkBitmap());
107 // Note: This class only decodes images from extension resources. Chrome 152 // Note: This class only decodes bitmaps from extension resources. Chrome
108 // doesn't (for security reasons) directly load extension resources provided 153 // doesn't (for security reasons) directly load extension resources provided
109 // by the extension author, but instead decodes them in a separate 154 // by the extension author, but instead decodes them in a separate
110 // locked-down utility process. Only if the decoding succeeds is the image 155 // locked-down utility process. Only if the decoding succeeds is the image
111 // saved from memory to disk and subsequently used in the Chrome UI. 156 // saved from memory to disk and subsequently used in the Chrome UI.
112 // Chrome is therefore decoding images here that were generated by Chrome. 157 // Chrome is therefore decoding bitmaps here that were generated by Chrome.
113 *decoded = decoder.Decode(data, file_contents.length()); 158 *decoded = decoder.Decode(data, file_contents.length());
114 if (decoded->empty()) { 159 if (decoded->empty()) {
115 ReportBack(NULL, resource, gfx::Size(), id); 160 ReportBack(NULL, image_info, gfx::Size(), id, false);
116 return; // Unable to decode. 161 return; // Unable to decode.
117 } 162 }
118 163
119 gfx::Size original_size(decoded->width(), decoded->height()); 164 gfx::Size original_size(decoded->width(), decoded->height());
120 165
121 if (decoded->width() > max_size.width() || 166 if (ShouldResizeImageRepresentation(image_info.resize_method,
122 decoded->height() > max_size.height()) { 167 original_size,
123 // The bitmap is too big, re-sample. 168 image_info.desired_size)) {
124 *decoded = skia::ImageOperations::Resize( 169 *decoded = skia::ImageOperations::Resize(
125 *decoded, skia::ImageOperations::RESIZE_LANCZOS3, 170 *decoded, skia::ImageOperations::RESIZE_LANCZOS3,
126 max_size.width(), max_size.height()); 171 image_info.desired_size.width(), image_info.desired_size.height());
127 } 172 }
128 173
129 ReportBack(decoded.release(), resource, original_size, id); 174 ReportBack(decoded.release(), image_info, original_size, id,
175 true /* delete bitmap*/);
oshima 2012/08/08 03:27:43 bitmap */
tbarzic 2012/08/08 04:55:45 Done.
130 } 176 }
131 177
132 // Instructs the loader to load a resource on the File thread. 178 // Instructs the loader to load a resource on the File thread.
133 void LoadResource(const ExtensionResource& resource, 179 void LoadResource(const ImageRepresentation& image_info,
134 const gfx::Size& max_size,
135 int id, 180 int id,
136 int resource_id) { 181 int resource_id) {
137 DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::FILE)); 182 DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::FILE));
138 BrowserThread::PostTask( 183 BrowserThread::PostTask(
139 BrowserThread::FILE, FROM_HERE, 184 BrowserThread::FILE, FROM_HERE,
140 base::Bind(&ImageLoader::LoadResourceOnFileThread, this, resource, 185 base::Bind(&ImageLoader::LoadResourceOnFileThread, this, image_info,
141 max_size, id, resource_id)); 186 id, resource_id));
142 } 187 }
143 188
144 void LoadResourceOnFileThread(const ExtensionResource& resource, 189 void LoadResourceOnFileThread(const ImageRepresentation& image_info,
145 const gfx::Size& max_size,
146 int id, 190 int id,
147 int resource_id) { 191 int resource_id) {
148 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); 192 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
149 SkBitmap* image = ExtensionIconSource::LoadImageByResourceId( 193 const SkBitmap* bitmap = ResourceBundle::GetSharedInstance().GetImageNamed(
150 resource_id); 194 resource_id).ToSkBitmap();
151 ReportBack(image, resource, max_size, id); 195 ReportBack(bitmap, image_info, image_info.desired_size, id,
196 false /* don't delete bitmap */);
152 } 197 }
153 198
154 void ReportBack(SkBitmap* image, const ExtensionResource& resource, 199 void ReportBack(const SkBitmap* bitmap, const ImageRepresentation& image_info,
155 const gfx::Size& original_size, int id) { 200 const gfx::Size& original_size, int id, bool delete_bitmap) {
156 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); 201 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
157 202
158 BrowserThread::PostTask( 203 BrowserThread::PostTask(
159 callback_thread_id_, FROM_HERE, 204 callback_thread_id_, FROM_HERE,
160 base::Bind(&ImageLoader::ReportOnUIThread, this, 205 base::Bind(&ImageLoader::ReportOnUIThread, this,
161 image, resource, original_size, id)); 206 bitmap, image_info, original_size, id, delete_bitmap));
162 } 207 }
163 208
164 void ReportOnUIThread(SkBitmap* image, const ExtensionResource& resource, 209 void ReportOnUIThread(const SkBitmap* bitmap,
oshima 2012/08/08 03:27:43 This may be call on non UI Thread? If so, can you
tbarzic 2012/08/08 04:55:45 Good catch.. I'm not sure, but judging by ctor, it
165 const gfx::Size& original_size, int id) { 210 const ImageRepresentation& image_info,
211 const gfx::Size& original_size,
212 int id,
213 bool delete_bitmap) {
166 DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::FILE)); 214 DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::FILE));
167 215
168 if (tracker_) 216 if (tracker_)
169 tracker_->OnImageLoaded(image, resource, original_size, id, true); 217 tracker_->OnBitmapLoaded(bitmap, image_info, original_size, id, true);
170 218
171 delete image; 219 if (bitmap && delete_bitmap)
220 delete bitmap;
172 } 221 }
173 222
174 private: 223 private:
175 friend class base::RefCountedThreadSafe<ImageLoader>; 224 friend class base::RefCountedThreadSafe<ImageLoader>;
176 ~ImageLoader() {} 225 ~ImageLoader() {}
177 226
178 // The tracker we are loading the image for. If NULL, it means the tracker is 227 // The tracker we are loading the bitmap for. If NULL, it means the tracker is
179 // no longer interested in the reply. 228 // no longer interested in the reply.
180 ImageLoadingTracker* tracker_; 229 ImageLoadingTracker* tracker_;
181 230
182 // The thread that we need to call back on to report that we are done. 231 // The thread that we need to call back on to report that we are done.
183 BrowserThread::ID callback_thread_id_; 232 BrowserThread::ID callback_thread_id_;
184 233
185 DISALLOW_COPY_AND_ASSIGN(ImageLoader); 234 DISALLOW_COPY_AND_ASSIGN(ImageLoader);
186 }; 235 };
187 236
188 //////////////////////////////////////////////////////////////////////////////// 237 ////////////////////////////////////////////////////////////////////////////////
(...skipping 10 matching lines...) Expand all
199 // The loader is created lazily and is NULL if the tracker is destroyed before 248 // The loader is created lazily and is NULL if the tracker is destroyed before
200 // any valid image load tasks have been posted. 249 // any valid image load tasks have been posted.
201 if (loader_) 250 if (loader_)
202 loader_->StopTracking(); 251 loader_->StopTracking();
203 } 252 }
204 253
205 void ImageLoadingTracker::LoadImage(const Extension* extension, 254 void ImageLoadingTracker::LoadImage(const Extension* extension,
206 const ExtensionResource& resource, 255 const ExtensionResource& resource,
207 const gfx::Size& max_size, 256 const gfx::Size& max_size,
208 CacheParam cache) { 257 CacheParam cache) {
209 std::vector<ImageInfo> info_list; 258 std::vector<ImageRepresentation> info_list;
210 info_list.push_back(ImageInfo(resource, max_size)); 259 info_list.push_back(ImageRepresentation(
260 resource,
261 ImageRepresentation::RESIZE_WHEN_LARGER,
262 max_size,
263 ui::SCALE_FACTOR_100P));
211 LoadImages(extension, info_list, cache); 264 LoadImages(extension, info_list, cache);
212 } 265 }
213 266
214 void ImageLoadingTracker::LoadImages(const Extension* extension, 267 void ImageLoadingTracker::LoadImages(
215 const std::vector<ImageInfo>& info_list, 268 const Extension* extension,
216 CacheParam cache) { 269 const std::vector<ImageRepresentation>& info_list,
270 CacheParam cache) {
217 PendingLoadInfo load_info; 271 PendingLoadInfo load_info;
218 load_info.extension = extension; 272 load_info.extension = extension;
219 load_info.cache = cache; 273 load_info.cache = cache;
220 load_info.extension_id = extension->id(); 274 load_info.extension_id = extension->id();
221 load_info.pending_count = info_list.size(); 275 load_info.pending_count = info_list.size();
222 int id = next_id_++; 276 int id = next_id_++;
223 load_map_[id] = load_info; 277 load_map_[id] = load_info;
224 278
225 for (std::vector<ImageInfo>::const_iterator it = info_list.begin(); 279 for (std::vector<ImageRepresentation>::const_iterator it = info_list.begin();
226 it != info_list.end(); ++it) { 280 it != info_list.end(); ++it) {
281 int resource_id = -1;
282
227 // Load resources for special component extensions. 283 // Load resources for special component extensions.
228 if (load_info.extension_id == extension_misc::kWebStoreAppId) { 284 if (FindSpecialExtensionResourceId(load_info.extension_id, &resource_id)) {
229 if (!loader_) 285 if (!loader_)
230 loader_ = new ImageLoader(this); 286 loader_ = new ImageLoader(this);
231 loader_->LoadResource(it->resource, it->max_size, id, IDR_WEBSTORE_ICON); 287 loader_->LoadResource(*it, id, resource_id);
232 continue;
233 } else if (load_info.extension_id == extension_misc::kChromeAppId) {
234 if (!loader_)
235 loader_ = new ImageLoader(this);
236 loader_->LoadResource(it->resource,
237 it->max_size,
238 id,
239 IDR_PRODUCT_LOGO_128);
240 continue; 288 continue;
241 } 289 }
242 290
243 // If we don't have a path we don't need to do any further work, just 291 // If we don't have a path we don't need to do any further work, just
244 // respond back. 292 // respond back.
245 if (it->resource.relative_path().empty()) { 293 if (it->resource.relative_path().empty()) {
246 OnImageLoaded(NULL, it->resource, it->max_size, id, false); 294 OnBitmapLoaded(NULL, *it, it->desired_size, id, false);
247 continue; 295 continue;
248 } 296 }
249 297
250 DCHECK(extension->path() == it->resource.extension_root()); 298 DCHECK(extension->path() == it->resource.extension_root());
251 299
252 // See if the extension has the image already. 300 // See if the extension has the bitmap already.
253 if (extension->HasCachedImage(it->resource, it->max_size)) { 301 if (extension->HasCachedImage(it->resource, it->desired_size)) {
254 SkBitmap image = extension->GetCachedImage(it->resource, it->max_size); 302 SkBitmap bitmap = extension->GetCachedImage(it->resource,
255 OnImageLoaded(&image, it->resource, it->max_size, id, false); 303 it->desired_size);
304 OnBitmapLoaded(&bitmap, *it, it->desired_size, id, false);
256 continue; 305 continue;
257 } 306 }
258 307
259 // Instruct the ImageLoader to load this on the File thread. LoadImage and 308 // Instruct the ImageLoader to load this on the File thread. LoadImage and
260 // LoadResource do not block. 309 // LoadResource do not block.
261 if (!loader_) 310 if (!loader_)
262 loader_ = new ImageLoader(this); 311 loader_ = new ImageLoader(this);
263 312
264 int resource_id;
265 if (IsComponentExtensionResource(extension, it->resource, resource_id)) 313 if (IsComponentExtensionResource(extension, it->resource, resource_id))
266 loader_->LoadResource(it->resource, it->max_size, id, resource_id); 314 loader_->LoadResource(*it, id, resource_id);
267 else 315 else
268 loader_->LoadImage(it->resource, it->max_size, id); 316 loader_->LoadImage(*it, id);
269 } 317 }
270 } 318 }
271 319
272 bool ImageLoadingTracker::IsComponentExtensionResource( 320 bool ImageLoadingTracker::IsComponentExtensionResource(
273 const Extension* extension, 321 const Extension* extension,
274 const ExtensionResource& resource, 322 const ExtensionResource& resource,
275 int& resource_id) const { 323 int& resource_id) const {
276 if (extension->location() != Extension::COMPONENT) 324 if (extension->location() != Extension::COMPONENT)
277 return false; 325 return false;
278 326
279 FilePath directory_path = extension->path(); 327 FilePath directory_path = extension->path();
280 FilePath relative_path = directory_path.BaseName().Append( 328 FilePath relative_path = directory_path.BaseName().Append(
281 resource.relative_path()); 329 resource.relative_path());
282 330
283 for (size_t i = 0; i < kComponentExtensionResourcesSize; ++i) { 331 for (size_t i = 0; i < kComponentExtensionResourcesSize; ++i) {
284 FilePath resource_path = 332 FilePath resource_path =
285 FilePath().AppendASCII(kComponentExtensionResources[i].name); 333 FilePath().AppendASCII(kComponentExtensionResources[i].name);
286 resource_path = resource_path.NormalizePathSeparators(); 334 resource_path = resource_path.NormalizePathSeparators();
287 335
288 if (relative_path == resource_path) { 336 if (relative_path == resource_path) {
289 resource_id = kComponentExtensionResources[i].value; 337 resource_id = kComponentExtensionResources[i].value;
290 return true; 338 return true;
291 } 339 }
292 } 340 }
293 return false; 341 return false;
294 } 342 }
295 343
296 void ImageLoadingTracker::OnImageLoaded( 344 void ImageLoadingTracker::OnBitmapLoaded(
297 SkBitmap* image, 345 const SkBitmap* bitmap,
298 const ExtensionResource& resource, 346 const ImageRepresentation& image_info,
299 const gfx::Size& original_size, 347 const gfx::Size& original_size,
300 int id, 348 int id,
301 bool should_cache) { 349 bool should_cache) {
302 LoadMap::iterator load_map_it = load_map_.find(id); 350 LoadMap::iterator load_map_it = load_map_.find(id);
303 DCHECK(load_map_it != load_map_.end()); 351 DCHECK(load_map_it != load_map_.end());
304 PendingLoadInfo* info = &load_map_it->second; 352 PendingLoadInfo* info = &load_map_it->second;
305 353
306 // Save the pending results. 354 // Save the pending results.
307 DCHECK(info->pending_count > 0); 355 DCHECK_GT(info->pending_count, 0u);
308 info->pending_count--; 356 info->pending_count--;
309 if (image) 357 if (bitmap) {
310 info->bitmaps.push_back(*image); 358 info->image_skia.AddRepresentation(gfx::ImageSkiaRep(*bitmap,
359 image_info.scale_factor));
360 }
311 361
312 // Add to the extension's image cache if requested. 362 // Add to the extension's bitmap cache if requested.
313 DCHECK(info->cache != CACHE || info->extension); 363 DCHECK(info->cache != CACHE || info->extension);
314 if (should_cache && info->cache == CACHE && 364 if (should_cache && info->cache == CACHE &&
315 !info->extension->HasCachedImage(resource, original_size)) { 365 !info->extension->HasCachedImage(image_info.resource, original_size)) {
316 info->extension->SetCachedImage(resource, image ? *image : SkBitmap(), 366 info->extension->SetCachedImage(image_info.resource,
367 bitmap ? *bitmap : SkBitmap(),
317 original_size); 368 original_size);
318 } 369 }
319 370
320 // If all pending images are done then report back. 371 // If all pending bitmaps are done then report back.
321 if (info->pending_count == 0) { 372 if (info->pending_count == 0) {
322 gfx::Image image; 373 gfx::Image image;
323 std::string extension_id = info->extension_id; 374 std::string extension_id = info->extension_id;
324 375
325 if (info->bitmaps.size() > 0) { 376 if (!info->image_skia.empty())
326 gfx::ImageSkia image_skia; 377 image = gfx::Image(info->image_skia);
327 for (std::vector<SkBitmap>::const_iterator it = info->bitmaps.begin();
328 it != info->bitmaps.end(); ++it) {
329 // TODO(pkotwicz): Do something better but ONLY when DIP is enabled.
330 image_skia.AddRepresentation(
331 gfx::ImageSkiaRep(*it, ui::SCALE_FACTOR_100P));
332 }
333 image = gfx::Image(image_skia);
334 }
335 378
336 load_map_.erase(load_map_it); 379 load_map_.erase(load_map_it);
337 380
338 // ImageLoadingTracker might be deleted after the callback so don't 381 // ImageLoadingTracker might be deleted after the callback so don't do
339 // anything after this statement. 382 // anything after this statement.
340 observer_->OnImageLoaded(image, extension_id, id); 383 observer_->OnImageLoaded(image, extension_id, id);
341 } 384 }
342 } 385 }
343 386
344 void ImageLoadingTracker::Observe(int type, 387 void ImageLoadingTracker::Observe(int type,
345 const content::NotificationSource& source, 388 const content::NotificationSource& source,
346 const content::NotificationDetails& details) { 389 const content::NotificationDetails& details) {
347 DCHECK(type == chrome::NOTIFICATION_EXTENSION_UNLOADED); 390 DCHECK(type == chrome::NOTIFICATION_EXTENSION_UNLOADED);
348 391
349 const Extension* extension = 392 const Extension* extension =
350 content::Details<extensions::UnloadedExtensionInfo>(details)->extension; 393 content::Details<extensions::UnloadedExtensionInfo>(details)->extension;
351 394
352 // Remove reference to this extension from all pending load entries. This 395 // Remove reference to this extension from all pending load entries. This
353 // ensures we don't attempt to cache the image when the load completes. 396 // ensures we don't attempt to cache the bitmap when the load completes.
354 for (LoadMap::iterator i = load_map_.begin(); i != load_map_.end(); ++i) { 397 for (LoadMap::iterator i = load_map_.begin(); i != load_map_.end(); ++i) {
355 PendingLoadInfo* info = &i->second; 398 PendingLoadInfo* info = &i->second;
356 if (info->extension == extension) { 399 if (info->extension == extension) {
357 info->extension = NULL; 400 info->extension = NULL;
358 info->cache = DONT_CACHE; 401 info->cache = DONT_CACHE;
359 } 402 }
360 } 403 }
361 } 404 }
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