Move RefCountedMemory class to base namespace.

chrome/browser/favicon/favicon_handler.h

Index: chrome/browser/favicon/favicon_handler.h
===================================================================
--- chrome/browser/favicon/favicon_handler.h	(revision 134496)
+++ chrome/browser/favicon/favicon_handler.h	(working copy)
@@ -22,9 +22,12 @@
 
 class FaviconHandlerDelegate;
 class Profile;
-class RefCountedMemory;
 class SkBitmap;
 
+namespace base {
+class RefCountedMemory;
+}
+
 namespace content {
 class NavigationEntry;
 }
@@ -234,7 +237,7 @@
   // If the WebContents has a delegate, it is notified of the new favicon
   // (INVALIDATE_FAVICON).
   void UpdateFavicon(content::NavigationEntry* entry,
-                     scoped_refptr<RefCountedMemory> data);
+                     scoped_refptr<base::RefCountedMemory> data);
   void UpdateFavicon(content::NavigationEntry* entry, const gfx::Image* image);
 
   // If the image is not already at its preferred size, scales the image such