Use hi-resolution favicon variants if available.

chrome/renderer/chrome_render_view_observer.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_RENDERER_CHROME_RENDER_VIEW_OBSERVER_H_
 #define CHROME_RENDERER_CHROME_RENDER_VIEW_OBSERVER_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 17 matching lines @@
 
 namespace WebKit {
 class WebView;
 }
 
 namespace safe_browsing {
 class PhishingClassifierDelegate;
 }
 
 namespace webkit_glue {
-class ImageResourceFetcher;
+class MultiResolutionImageResourceFetcher;
 }
 
 // This class holds the Chrome specific parts of RenderView, and has the same
 // lifetime.
 class ChromeRenderViewObserver : public content::RenderViewObserver,
                                  public WebKit::WebPermissionClient {
  public:
   // translate_helper can be NULL.
   ChromeRenderViewObserver(
       content::RenderView* render_view,
@@ skipping 111 matching lines @@
 
   // Capture a snapshot of a view.  This is used to allow an extension
   // to get a snapshot of a tab using chrome.tabs.captureVisibleTab().
   bool CaptureSnapshot(WebKit::WebView* view, SkBitmap* snapshot);
 
   ExternalHostBindings* GetExternalHostBindings();
 
   // This callback is triggered when DownloadFavicon completes, either
   // succesfully or with a failure. See DownloadFavicon for more
   // details.
-  void DidDownloadFavicon(webkit_glue::ImageResourceFetcher* fetcher,
-                          const SkBitmap& image);
+  void DidDownloadFavicon(
+      int requested_size,
+      webkit_glue::MultiResolutionImageResourceFetcher* fetcher,
+      const std::vector<SkBitmap>& images);
 
   // Requests to download a favicon image. When done, the RenderView
   // is notified by way of DidDownloadFavicon. Returns true if the
   // request was successfully started, false otherwise. id is used to
   // uniquely identify the request and passed back to the
   // DidDownloadFavicon method. If the image has multiple frames, the
   // frame whose size is image_size is returned. If the image doesn't
   // have a frame at the specified size, the first is returned.
   bool DownloadFavicon(int id, const GURL& image_url, int image_size);
 
@@ skipping 29 matching lines @@
   GURL last_indexed_url_;
 
   // Insecure content may be permitted for the duration of this render view.
   bool allow_displaying_insecure_content_;
   bool allow_running_insecure_content_;
   std::set<std::string> strict_security_hosts_;
 
   // External host exposed through automation controller.
   scoped_ptr<ExternalHostBindings> external_host_bindings_;
 
-  typedef std::vector<linked_ptr<webkit_glue::ImageResourceFetcher> >
-      ImageResourceFetcherList;
+  typedef std::vector<
+      linked_ptr<webkit_glue::MultiResolutionImageResourceFetcher> >
+    ImageResourceFetcherList;
 
   // ImageResourceFetchers schedule via DownloadImage.
   ImageResourceFetcherList image_fetchers_;
 
   // A color page overlay when visually de-emaphasized.
   scoped_ptr<WebViewColorOverlay> dimmed_color_overlay_;
 
   // Used to delay calling CapturePageInfo.
   base::Timer capture_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeRenderViewObserver);
 };
 
 #endif  // CHROME_RENDERER_CHROME_RENDER_VIEW_OBSERVER_H_