Move Extension into extensions namespace

chrome/browser/extensions/image_loading_tracker.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_IMAGE_LOADING_TRACKER_H_
 #define CHROME_BROWSER_EXTENSIONS_IMAGE_LOADING_TRACKER_H_
 #pragma once
 
 #include <map>
 
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/common/extensions/extension_resource.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "ui/gfx/size.h"
 
+class SkBitmap;
+
+namespace extensions {
 class Extension;
-class SkBitmap;
+}
 
 namespace gfx {
 class Image;
 }
 
 // The views need to load their icons asynchronously but might be deleted before
 // the images have loaded. This class encapsulates a loader class that stays
 // alive while the request is in progress (manages its own lifetime) and keeps
 // track of whether the view still cares about the icon loading.
 //
@@ skipping 39 matching lines @@
     gfx::Size max_size;
   };
 
   explicit ImageLoadingTracker(Observer* observer);
   virtual ~ImageLoadingTracker();
 
   // Specify image resource to load. If the loaded image is larger than
   // |max_size| it will be resized to those dimensions. IMPORTANT NOTE: this
   // function may call back your observer synchronously (ie before it returns)
   // if the image was found in the cache.
-  void LoadImage(const Extension* extension,
+  void LoadImage(const extensions::Extension* extension,
                  const ExtensionResource& resource,
                  const gfx::Size& max_size,
                  CacheParam cache);
 
   // Same as LoadImage() above except it loads multiple images from the same
   // extension. This is used to load multiple resolutions of the same image
   // type.
-  void LoadImages(const Extension* extension,
+  void LoadImages(const extensions::Extension* extension,
                   const std::vector<ImageInfo>& info_list,
                   CacheParam cache);
 
   // Returns the ID used for the next image that is loaded. That is, the return
   // value from this method corresponds to the int that is passed to
   // OnImageLoaded() the next time LoadImage() is invoked.
   int next_id() const { return next_id_; }
 
  private:
   // Information for pending image load operation for one or more images.
   struct PendingLoadInfo {
     PendingLoadInfo();
     ~PendingLoadInfo();
 
-    const Extension* extension;
+    const extensions::Extension* extension;
     // This is cached separate from |extension| in case the extension in
     // unloaded.
     std::string extension_id;
     CacheParam cache;
     size_t pending_count;
     std::vector<SkBitmap> bitmaps;
   };
 
   // Maps an integer identifying a load request to a PendingLoadInfo.
   typedef std::map<int, PendingLoadInfo> LoadMap;
 
   class ImageLoader;
 
   // When an image has finished loaded and been resized on the file thread, it
   // is posted back to this method on the original thread.  This method then
   // calls the observer's OnImageLoaded and deletes the ImageLoadingTracker if
   // it was the last image in the list. The |original_size| should be the size
   // of the image before any resizing was done.
   // |image| may be null if the file failed to decode.
   void OnImageLoaded(SkBitmap* image, const ExtensionResource& resource,
                      const gfx::Size& original_size, int id, bool should_cache);
 
   // Checks whether image is a component extension resource. Returns false
   // if a given |resource| does not have a corresponding image in bundled
   // resources. Otherwise fills |resource_id|.
-  bool IsComponentExtensionResource(const Extension* extension,
+  bool IsComponentExtensionResource(const extensions::Extension* extension,
                                     const ExtensionResource& resource,
                                     int& resource_id) const;
 
   // content::NotificationObserver method. If an extension is uninstalled while
   // we're waiting for the image we remove the entry from load_map_.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // The view that is waiting for the image to load.
@@ skipping 11 matching lines @@
 
   content::NotificationRegistrar registrar_;
 
   FRIEND_TEST_ALL_PREFIXES(ImageLoadingTrackerTest,
                            IsComponentExtensionResource);
 
   DISALLOW_COPY_AND_ASSIGN(ImageLoadingTracker);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_IMAGE_LOADING_TRACKER_H_