move favicon download code from chrome/ into content/

chrome/browser/ui/views/ash/balloon_view_ash.h

Index: chrome/browser/ui/views/ash/balloon_view_ash.h
diff --git a/chrome/browser/ui/views/ash/balloon_view_ash.h b/chrome/browser/ui/views/ash/balloon_view_ash.h
index ff56d34e62b76f500092ca11c23c82602a3e73ce..c850d8474dd4ef7b6cfcb8d90de718ffa4da7be2 100644
--- a/chrome/browser/ui/views/ash/balloon_view_ash.h
+++ b/chrome/browser/ui/views/ash/balloon_view_ash.h
@@ -7,14 +7,13 @@
 
 #include <map>
 
-#include "chrome/browser/favicon/favicon_download_helper_delegate.h"
 #include "chrome/browser/notifications/balloon.h"
+#include "content/public/browser/favicon_download_delegate.h"
 
-class FaviconDownloadHelper;
 
 // On Ash, a "BalloonView" is just a wrapper for ash notification entries.
 class BalloonViewAsh : public BalloonView,
-                       public FaviconDownloadHelperDelegate {
+                       public content::FaviconDownloadDelegate {
  public:
   explicit BalloonViewAsh(BalloonCollection* collection);
   virtual ~BalloonViewAsh();
@@ -27,8 +26,8 @@ class BalloonViewAsh : public BalloonView,
   virtual gfx::Size GetSize() const OVERRIDE;
   virtual BalloonHost* GetHost() const OVERRIDE;
 
-  // FaviconDownloadHelperDelegate interface:
-  virtual void OnDidDownloadFavicon(
+  // Content::FaviconDownloadDelegate interface:
+  virtual void DidDownloadFavicon(
       int id,
       const GURL& image_url,
       bool errored,
@@ -41,7 +40,6 @@ class BalloonViewAsh : public BalloonView,
 
   BalloonCollection* collection_;
   Balloon* balloon_;
-  scoped_ptr<FaviconDownloadHelper> icon_fetcher_;
 
   // Track the current notification id and download id so that it can be updated
   // properly.