Move allocate instance id to chrome/.

chrome/browser/guest_view/web_view/web_view_guest.h

 // Copyright 2014 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 CHROME_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_GUEST_H_
 #define CHROME_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_GUEST_H_
 
 #include <vector>
 
 #include "base/observer_list.h"
@@ skipping 63 matching lines @@
   virtual bool HandleContextMenu(
       const content::ContextMenuParams& params) OVERRIDE;
 
   // GuestDelegate implementation.
   virtual void AddMessageToConsole(int32 level,
                                    const base::string16& message,
                                    int32 line_no,
                                    const base::string16& source_id) OVERRIDE;
   virtual void LoadProgressed(double progress) OVERRIDE;
   virtual void Close() OVERRIDE;
-  virtual void DidAttach() OVERRIDE;
+  virtual void DidAttach(const base::DictionaryValue& extra_params) OVERRIDE;
   virtual void EmbedderDestroyed() OVERRIDE;
   virtual void FindReply(int request_id,
                          int number_of_matches,
                          const gfx::Rect& selection_rect,
                          int active_match_ordinal,
                          bool final_update) OVERRIDE;
   virtual void GuestProcessGone(base::TerminationStatus status) OVERRIDE;
   virtual void HandleKeyboardEvent(
       const content::NativeWebKeyboardEvent& event) OVERRIDE;
   virtual bool IsDragAndDropEnabled() OVERRIDE;
@@ skipping 332 matching lines @@
         name(name) {}
   };
 
   typedef std::map<WebViewGuest*, NewWindowInfo> PendingWindowMap;
   PendingWindowMap pending_new_windows_;
 
   DISALLOW_COPY_AND_ASSIGN(WebViewGuest);
 };
 
 #endif  // CHROME_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_GUEST_H_