Move allocate instance id to chrome/.

content/renderer/browser_plugin/browser_plugin_manager_impl.h

Index: content/renderer/browser_plugin/browser_plugin_manager_impl.h
diff --git a/content/renderer/browser_plugin/browser_plugin_manager_impl.h b/content/renderer/browser_plugin/browser_plugin_manager_impl.h
index 384313befe57b90a8d11f727da7581107ff33e90..219ff30a0010fbbbd46d8a6b61aaac76f950bb8b 100644
--- a/content/renderer/browser_plugin/browser_plugin_manager_impl.h
+++ b/content/renderer/browser_plugin/browser_plugin_manager_impl.h
@@ -25,8 +25,6 @@ class BrowserPluginManagerImpl : public BrowserPluginManager {
       RenderViewImpl* render_view,
       blink::WebFrame* frame,
       bool auto_navigate) OVERRIDE;
-  virtual void AllocateInstanceID(
-      const base::WeakPtr<BrowserPlugin>& browser_plugin) OVERRIDE;
 
   // IPC::Sender implementation.
   virtual bool Send(IPC::Message* msg) OVERRIDE;
@@ -38,13 +36,6 @@ class BrowserPluginManagerImpl : public BrowserPluginManager {
  private:
   virtual ~BrowserPluginManagerImpl();
 
-  void OnAllocateInstanceIDACK(int request_id,
-                               int guest_instance_id);
-
-  int request_id_counter_;
-  typedef std::map<int, const base::WeakPtr<BrowserPlugin> > InstanceIDMap;
-  InstanceIDMap pending_allocate_guest_instance_id_requests_;
-
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginManagerImpl);
 };