Remove ImageLoadingTracker class

chrome/common/extensions/extension.h

 // Copyright (c) 2013 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_COMMON_EXTENSIONS_EXTENSION_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_H_
 
 #include <algorithm>
 #include <iosfwd>
 #include <map>
@@ skipping 276 matching lines @@
 
   // Expects base64 encoded |input| and formats into |output| including
   // the appropriate header & footer.
   static bool FormatPEMForFileOutput(const std::string& input,
                                      std::string* output,
                                      bool is_public);
 
   // Given an extension, icon size, and match type, read a valid icon if present
   // and decode it into result. In the browser process, this will DCHECK if not
   // called on the file thread. To easily load extension images on the UI
-  // thread, see ImageLoadingTracker.
+  // thread, see ImageLoader.
   static void DecodeIcon(const Extension* extension,
                          int icon_size,
                          ExtensionIconSet::MatchType match_type,
                          scoped_ptr<SkBitmap>* result);
 
   // Given an extension and icon size, read it if present and decode it into
   // result. In the browser process, this will DCHECK if not called on the
   // file thread. To easily load extension images on the UI thread, see
-  // ImageLoadingTracker.
+  // ImageLoader.
   static void DecodeIcon(const Extension* extension,
                          int icon_size,
                          scoped_ptr<SkBitmap>* result);
 
   // Given an icon_path and icon size, read it if present and decode it into
   // result. In the browser process, this will DCHECK if not called on the
   // file thread. To easily load extension images on the UI thread, see
-  // ImageLoadingTracker.
+  // ImageLoader.
   static void DecodeIconFromPath(const base::FilePath& icon_path,
                                  int icon_size,
                                  scoped_ptr<SkBitmap>* result);
 
   // Returns the default extension/app icon (for extensions or apps that don't
   // have one).
   static const gfx::ImageSkia& GetDefaultIcon(bool is_app);
 
   // Returns the base extension url for a given |extension_id|.
   static GURL GetBaseURLFromExtensionId(const std::string& extension_id);
@@ skipping 70 matching lines @@
   std::set<base::FilePath> GetBrowserImages() const;
 
   // Get an extension icon as a resource or URL.
   ExtensionResource GetIconResource(
       int size, ExtensionIconSet::MatchType match_type) const;
   GURL GetIconURL(int size, ExtensionIconSet::MatchType match_type) const;
 
   // Gets the fully resolved absolute launch URL.
   GURL GetFullLaunchURL() const;
 
-  // Image cache related methods. These are only valid on the UI thread and
-  // not maintained by this class. See ImageLoadingTracker for usage. The
-  // |original_size| parameter should be the size of the image at |source|
-  // before any scaling may have been done to produce the pixels in |image|.
-  void SetCachedImage(const ExtensionResource& source,
-                      const SkBitmap& image,
-                      const gfx::Size& original_size) const;
-  bool HasCachedImage(const ExtensionResource& source,
-                      const gfx::Size& max_size) const;
-  SkBitmap GetCachedImage(const ExtensionResource& source,
-                          const gfx::Size& max_size) const;
-
   // Returns true if this extension can execute script on a page. If a
   // UserScript object is passed, permission to run that specific script is
   // checked (using its matches list). Otherwise, permission to execute script
   // programmatically is checked (using the extension's host permission).
   //
   // This method is also aware of certain special pages that extensions are
   // usually not allowed to run script on.
   bool CanExecuteScriptOnPage(const GURL& document_url,
                               const GURL& top_document_url,
                               int tab_id,
@@ skipping 165 matching lines @@
 
   // Content pack related.
   bool is_content_pack() const;
   ExtensionResource GetContentPackSiteList() const;
 
   GURL GetBackgroundURL() const;
 
  private:
   friend class base::RefCountedThreadSafe<Extension>;
 
-  // We keep a cache of images loaded from extension resources based on their
-  // path and a string representation of a size that may have been used to
-  // scale it (or the empty string if the image is at its original size).
-  typedef std::pair<base::FilePath, std::string> ImageCacheKey;
-  typedef std::map<ImageCacheKey, SkBitmap> ImageCache;
-
   class RuntimeData {
    public:
     RuntimeData();
     explicit RuntimeData(const PermissionSet* active);
     ~RuntimeData();
 
     void SetActivePermissions(const PermissionSet* active);
     scoped_refptr<const PermissionSet> GetActivePermissions() const;
 
     scoped_refptr<const PermissionSet> GetTabSpecificPermissions(int tab_id)
@@ skipping 93 matching lines @@
   bool LoadIncognitoMode(string16* error);
   bool LoadContentSecurityPolicy(string16* error);
   bool LoadManagedModeFeatures(string16* error);
   bool LoadManagedModeSites(
       const base::DictionaryValue* content_pack_value,
       string16* error);
   bool LoadManagedModeConfigurations(
       const base::DictionaryValue* content_pack_value,
       string16* error);
 
-  // Helper function for implementing HasCachedImage/GetCachedImage. A return
-  // value of NULL means there is no matching image cached (we allow caching an
-  // empty SkBitmap).
-  SkBitmap* GetCachedImageImpl(const ExtensionResource& source,
-                               const gfx::Size& max_size) const;
-
   // Helper method that loads a UserScript object from a
   // dictionary in the content_script list of the manifest.
   bool LoadUserScriptHelper(const base::DictionaryValue* content_script,
                             int definition_index,
                             string16* error,
                             UserScript* result);
 
   // Helper method that loads either the include_globs or exclude_globs list
   // from an entry in the content_script lists of the manifest.
   bool LoadGlobsHelper(const base::DictionaryValue* content_script,
@@ skipping 21 matching lines @@
       const APIPermissionSet& permissions) const;
 
   bool CheckMinimumChromeVersion(string16* error) const;
 
   // Check that platform app features are valid. Called after InitFromValue.
   bool CheckPlatformAppFeatures(std::string* utf8_error) const;
 
   // Check that features don't conflict. Called after InitFromValue.
   bool CheckConflictingFeatures(std::string* utf8_error) const;
 
-  // Cached images for this extension. This should only be touched on the UI
-  // thread.
-  mutable ImageCache image_cache_;
-
   // The extension's human-readable name. Name is used for display purpose. It
   // might be wrapped with unicode bidi control characters so that it is
   // displayed correctly in RTL context.
   // NOTE: Name is UTF-8 and may contain non-ascii characters.
   std::string name_;
 
   // A non-localized version of the extension's name. This is useful for
   // debug output.
   std::string non_localized_name_;
 
@@ skipping 213 matching lines @@
 
   UpdatedExtensionPermissionsInfo(
       const Extension* extension,
       const PermissionSet* permissions,
       Reason reason);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_H_