Remove page IDs from three WebContentsObserver APIs that don't need it.

content/browser/frame_host/render_frame_host_delegate.h

 // Copyright 2013 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 CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
 
 #include "base/basictypes.h"
 #include "content/common/content_export.h"
 #include "content/public/common/javascript_message_type.h"
@@ skipping 71 matching lines @@
   // Another page accessed the top-level initial empty document, which means it
   // is no longer safe to display a pending URL without risking a URL spoof.
   virtual void DidAccessInitialDocument() {}
 
   // The frame set its opener to null, disowning it for the lifetime of the
   // window. Only called for the top-level frame.
   virtual void DidDisownOpener(RenderFrameHost* render_frame_host) {}
 
   // The onload handler in the frame has completed. Only called for the top-
   // level frame.
-  virtual void DocumentOnLoadCompleted(RenderFrameHost* render_frame_host,
-                                       int32 page_id) {}
+  virtual void DocumentOnLoadCompleted(RenderFrameHost* render_frame_host) {}
 
   // Return this object cast to a WebContents, if it is one. If the object is
   // not a WebContents, returns NULL.
   virtual WebContents* GetAsWebContents();
 
  protected:
   virtual ~RenderFrameHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_