Split FaviconHelper in two: ImageLoadingHelper and FaviconHelper

content/public/browser/web_contents.h

Index: content/public/browser/web_contents.h
diff --git a/content/public/browser/web_contents.h b/content/public/browser/web_contents.h
index dfbe07329ce4fe751912def4a4bcc6b6ae28e356..d6240d55cce286ec75a20189beb88ff6d012d2cd 100644
--- a/content/public/browser/web_contents.h
+++ b/content/public/browser/web_contents.h
@@ -418,16 +418,16 @@ class WebContents : public PageNavigator,
                               const GURL&, /* image_url */
                               int,  /* requested_size */
                               const std::vector<SkBitmap>& /* bitmaps*/)>
-      FaviconDownloadCallback;
+      ImageDownloadCallback;
 
-  // Sends a request to download the given favicon |url| and returns the unique
+  // Sends a request to download the given image |url| and returns the unique
   // id of the download request. When the download is finished, |callback| will
   // be called with the bitmaps received from the renderer. Note that
   // |image_size| is a hint for images with multiple sizes. The downloaded image
   // is not resized to the given image_size. If 0 is passed, the first frame of
   // the image is returned.
-  virtual int DownloadFavicon(const GURL& url, int image_size,
-                              const FaviconDownloadCallback& callback) = 0;
+  virtual int DownloadImage(const GURL& url, int image_size,
+                            const ImageDownloadCallback& callback) = 0;
 
  private:
   // This interface should only be implemented inside content.