Remove ImageLoadingTracker class

chrome/browser/extensions/image_loading_tracker_unittest.cc

Index: chrome/browser/extensions/image_loading_tracker_unittest.cc
diff --git a/chrome/browser/extensions/image_loading_tracker_unittest.cc b/chrome/browser/extensions/image_loading_tracker_unittest.cc
deleted file mode 100644
index f722304ee15a0a1af1f2d642928bcbe192418bbd..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/image_loading_tracker_unittest.cc
+++ /dev/null
@@ -1,248 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/extensions/image_loading_tracker.h"
-
-#include "base/json/json_file_value_serializer.h"
-#include "base/message_loop.h"
-#include "base/path_service.h"
-#include "chrome/common/chrome_notification_types.h"
-#include "chrome/common/chrome_paths.h"
-#include "chrome/common/extensions/extension.h"
-#include "chrome/common/extensions/extension_constants.h"
-#include "chrome/common/extensions/extension_icon_set.h"
-#include "chrome/common/extensions/extension_resource.h"
-#include "chrome/common/extensions/manifest.h"
-#include "content/public/browser/notification_service.h"
-#include "content/public/test/test_browser_thread.h"
-#include "grit/component_extension_resources.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "ui/gfx/image/image.h"
-#include "ui/gfx/image/image_skia.h"
-#include "ui/gfx/size.h"
-
-using content::BrowserThread;
-using extensions::Extension;
-using extensions::Manifest;
-
-class ImageLoadingTrackerTest : public testing::Test,
-                                public ImageLoadingTracker::Observer {
- public:
-  ImageLoadingTrackerTest()
-      : image_loaded_count_(0),
-        quit_in_image_loaded_(false),
-        ui_thread_(BrowserThread::UI, &ui_loop_),
-        file_thread_(BrowserThread::FILE),
-        io_thread_(BrowserThread::IO) {
-  }
-
-  virtual void OnImageLoaded(const gfx::Image& image,
-                             const std::string& extension_id,
-                             int index) OVERRIDE {
-    image_loaded_count_++;
-    if (quit_in_image_loaded_)
-      MessageLoop::current()->Quit();
-    image_ = image;
-  }
-
-  void WaitForImageLoad() {
-    quit_in_image_loaded_ = true;
-    MessageLoop::current()->Run();
-    quit_in_image_loaded_ = false;
-  }
-
-  int image_loaded_count() {
-    int result = image_loaded_count_;
-    image_loaded_count_ = 0;
-    return result;
-  }
-
-  scoped_refptr<Extension> CreateExtension(const char* name,
-                                           Manifest::Location location) {
-    // Create and load an extension.
-    base::FilePath test_file;
-    if (!PathService::Get(chrome::DIR_TEST_DATA, &test_file)) {
-      EXPECT_FALSE(true);
-      return NULL;
-    }
-    test_file = test_file.AppendASCII("extensions")
-                         .AppendASCII(name);
-    int error_code = 0;
-    std::string error;
-    JSONFileValueSerializer serializer(test_file.AppendASCII("app.json"));
-    scoped_ptr<DictionaryValue> valid_value(
-        static_cast<DictionaryValue*>(serializer.Deserialize(&error_code,
-                                                             &error)));
-    EXPECT_EQ(0, error_code) << error;
-    if (error_code != 0)
-      return NULL;
-
-    EXPECT_TRUE(valid_value.get());
-    if (!valid_value.get())
-      return NULL;
-
-    if (location == Manifest::COMPONENT) {
-      if (!PathService::Get(chrome::DIR_RESOURCES, &test_file)) {
-        EXPECT_FALSE(true);
-        return NULL;
-      }
-      test_file = test_file.AppendASCII(name);
-    }
-    return Extension::Create(test_file, location, *valid_value,
-                             Extension::NO_FLAGS, &error);
-  }
-
-  gfx::Image image_;
-
- private:
-  virtual void SetUp() {
-    file_thread_.Start();
-    io_thread_.Start();
-  }
-
-  int image_loaded_count_;
-  bool quit_in_image_loaded_;
-  MessageLoop ui_loop_;
-  content::TestBrowserThread ui_thread_;
-  content::TestBrowserThread file_thread_;
-  content::TestBrowserThread io_thread_;
-};
-
-// Tests asking ImageLoadingTracker to cache pushes the result to the Extension.
-TEST_F(ImageLoadingTrackerTest, Cache) {
-  scoped_refptr<Extension> extension(CreateExtension(
-      "image_loading_tracker", Manifest::INVALID_LOCATION));
-  ASSERT_TRUE(extension.get() != NULL);
-
-  ExtensionResource image_resource =
-      extension->GetIconResource(extension_misc::EXTENSION_ICON_SMALLISH,
-                                 ExtensionIconSet::MATCH_EXACTLY);
-  gfx::Size max_size(extension_misc::EXTENSION_ICON_SMALLISH,
-                     extension_misc::EXTENSION_ICON_SMALLISH);
-  ImageLoadingTracker loader(this);
-  loader.LoadImage(extension.get(),
-                   image_resource,
-                   max_size,
-                   ImageLoadingTracker::CACHE);
-
-  // The image isn't cached, so we should not have received notification.
-  EXPECT_EQ(0, image_loaded_count());
-
-  WaitForImageLoad();
-
-  // We should have gotten the image.
-  EXPECT_EQ(1, image_loaded_count());
-
-  // Check that the image was loaded.
-  EXPECT_EQ(extension_misc::EXTENSION_ICON_SMALLISH,
-            image_.ToSkBitmap()->width());
-
-  // The image should be cached in the Extension.
-  EXPECT_TRUE(extension->HasCachedImage(image_resource, max_size));
-
-  // Make sure the image is in the extension.
-  EXPECT_EQ(extension_misc::EXTENSION_ICON_SMALLISH,
-            extension->GetCachedImage(image_resource, max_size).width());
-
-  // Ask the tracker for the image again, this should call us back immediately.
-  loader.LoadImage(extension.get(),
-                   image_resource,
-                   max_size,
-                   ImageLoadingTracker::CACHE);
-  // We should have gotten the image.
-  EXPECT_EQ(1, image_loaded_count());
-
-  // Check that the image was loaded.
-  EXPECT_EQ(extension_misc::EXTENSION_ICON_SMALLISH,
-            image_.ToSkBitmap()->width());
-}
-
-// Tests deleting an extension while waiting for the image to load doesn't cause
-// problems.
-TEST_F(ImageLoadingTrackerTest, DeleteExtensionWhileWaitingForCache) {
-  scoped_refptr<Extension> extension(CreateExtension(
-      "image_loading_tracker", Manifest::INVALID_LOCATION));
-  ASSERT_TRUE(extension.get() != NULL);
-
-  ExtensionResource image_resource =
-      extension->GetIconResource(extension_misc::EXTENSION_ICON_SMALLISH,
-                                 ExtensionIconSet::MATCH_EXACTLY);
-  ImageLoadingTracker loader(this);
-  loader.LoadImage(extension.get(),
-                   image_resource,
-                   gfx::Size(extension_misc::EXTENSION_ICON_SMALLISH,
-                             extension_misc::EXTENSION_ICON_SMALLISH),
-                   ImageLoadingTracker::CACHE);
-
-  // The image isn't cached, so we should not have received notification.
-  EXPECT_EQ(0, image_loaded_count());
-
-  // Send out notification the extension was uninstalled.
-  extensions::UnloadedExtensionInfo details(extension.get(),
-      extension_misc::UNLOAD_REASON_UNINSTALL);
-  content::NotificationService::current()->Notify(
-      chrome::NOTIFICATION_EXTENSION_UNLOADED,
-      content::NotificationService::AllSources(),
-      content::Details<extensions::UnloadedExtensionInfo>(&details));
-
-  // Chuck the extension, that way if anyone tries to access it we should crash
-  // or get valgrind errors.
-  extension = NULL;
-
-  WaitForImageLoad();
-
-  // Even though we deleted the extension, we should still get the image.
-  // We should still have gotten the image.
-  EXPECT_EQ(1, image_loaded_count());
-
-  // Check that the image was loaded.
-  EXPECT_EQ(extension_misc::EXTENSION_ICON_SMALLISH,
-            image_.ToSkBitmap()->width());
-}
-
-// Tests loading multiple dimensions of the same image.
-TEST_F(ImageLoadingTrackerTest, MultipleImages) {
-  scoped_refptr<Extension> extension(CreateExtension(
-      "image_loading_tracker", Manifest::INVALID_LOCATION));
-  ASSERT_TRUE(extension.get() != NULL);
-
-  std::vector<ImageLoadingTracker::ImageRepresentation> info_list;
-  int sizes[] = {extension_misc::EXTENSION_ICON_SMALLISH,
-                 extension_misc::EXTENSION_ICON_BITTY};
-  for (size_t i = 0; i < arraysize(sizes); ++i) {
-    ExtensionResource resource =
-        extension->GetIconResource(sizes[i], ExtensionIconSet::MATCH_EXACTLY);
-    info_list.push_back(ImageLoadingTracker::ImageRepresentation(
-        resource,
-        ImageLoadingTracker::ImageRepresentation::RESIZE_WHEN_LARGER,
-        gfx::Size(sizes[i], sizes[i]),
-        ui::SCALE_FACTOR_NONE));
-  }
-
-  ImageLoadingTracker loader(this);
-  loader.LoadImages(extension.get(), info_list, ImageLoadingTracker::CACHE);
-
-  // The image isn't cached, so we should not have received notification.
-  EXPECT_EQ(0, image_loaded_count());
-
-  WaitForImageLoad();
-
-  // We should have gotten the image.
-  EXPECT_EQ(1, image_loaded_count());
-
-  // Check that all images were loaded.
-  std::vector<gfx::ImageSkiaRep> image_reps =
-      image_.ToImageSkia()->image_reps();
-  ASSERT_EQ(2u, image_reps.size());
-  const gfx::ImageSkiaRep* img_rep1 = &image_reps[0];
-  const gfx::ImageSkiaRep* img_rep2 = &image_reps[1];
-  if (img_rep1->pixel_width() > img_rep2->pixel_width()) {
-    std::swap(img_rep1, img_rep2);
-  }
-  EXPECT_EQ(extension_misc::EXTENSION_ICON_BITTY,
-            img_rep1->pixel_width());
-  EXPECT_EQ(extension_misc::EXTENSION_ICON_SMALLISH,
-            img_rep2->pixel_width());
-}