Move unique name generation and tracking into //content.

content/renderer/render_frame_proxy.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 CONTENT_RENDERER_RENDER_FRAME_PROXY_H_
 #define CONTENT_RENDERER_RENDER_FRAME_PROXY_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "content/common/content_export.h"
@@ skipping 99 matching lines @@
   // when a compositor frame has committed.
   void DidCommitCompositorFrame();
 
   // Pass replicated information, such as security origin, to this
   // RenderFrameProxy's WebRemoteFrame.
   void SetReplicatedState(const FrameReplicationState& state);
 
   int routing_id() { return routing_id_; }
   RenderViewImpl* render_view() { return render_view_; }
   blink::WebRemoteFrame* web_frame() { return web_frame_; }
+  const std::string& unique_name() const { return unique_name_; }
 
   void set_provisional_frame_routing_id(int routing_id) {
     provisional_frame_routing_id_ = routing_id;
   }
 
   int provisional_frame_routing_id() { return provisional_frame_routing_id_; }
 
   // Returns the widget used for the local frame root.
   RenderWidget* render_widget() { return render_widget_; }
 
@@ skipping 52 matching lines @@
 
   // The routing ID by which this RenderFrameProxy is known.
   const int routing_id_;
 
   // The routing ID of the provisional RenderFrame (if any) that is meant to
   // replace this RenderFrameProxy in the frame tree.
   int provisional_frame_routing_id_;
 
   // Stores the WebRemoteFrame we are associated with.
   blink::WebRemoteFrame* web_frame_;
+  std::string unique_name_;
   scoped_refptr<ChildFrameCompositingHelper> compositing_helper_;
 
   RenderViewImpl* render_view_;
   RenderWidget* render_widget_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameProxy);
 };
 
 }  // namespace
 
 #endif  // CONTENT_RENDERER_RENDER_FRAME_PROXY_H_