Move download messages from Renderer to Frame filter.

content/renderer/render_frame_impl.h

Index: content/renderer/render_frame_impl.h
diff --git a/content/renderer/render_frame_impl.h b/content/renderer/render_frame_impl.h
index 261ed1c23ecf853051eaf412c275a4d10a8158fb..4e104f3355df0cd11ca0ee4037e7133a9c7f2db0 100644
--- a/content/renderer/render_frame_impl.h
+++ b/content/renderer/render_frame_impl.h
@@ -542,6 +542,7 @@ class CONTENT_EXPORT RenderFrameImpl
                             blink::WebString* actual_value) override;
   bool runModalBeforeUnloadDialog(bool is_reload) override;
   void showContextMenu(const blink::WebContextMenuData& data) override;
+  void saveImageFromDataURL(const blink::WebString& data_url) override;
   void willSendRequest(blink::WebLocalFrame* frame,
                        unsigned identifier,
                        blink::WebURLRequest& request,
@@ -767,6 +768,8 @@ class CONTENT_EXPORT RenderFrameImpl
   void OnMoveRangeSelectionExtent(const gfx::Point& point);
   void OnReplace(const base::string16& text);
   void OnReplaceMisspelling(const base::string16& text);
+  void OnCopyImageAt(int x, int y);
+  void OnSaveImageAt(int x, int y);
   void OnCSSInsertRequest(const std::string& css);
   void OnAddMessageToConsole(ConsoleMessageLevel level,
                              const std::string& message);