Remove BrowserPlugin's -internal-attach method

content/renderer/browser_plugin/mock_browser_plugin_manager.h

Index: content/renderer/browser_plugin/mock_browser_plugin_manager.h
diff --git a/content/renderer/browser_plugin/mock_browser_plugin_manager.h b/content/renderer/browser_plugin/mock_browser_plugin_manager.h
index b3614c74c94058a3cd703ed16f3c22f0b6e41bff..4c599c90ede78594d29f6a1e901efc87fa6a616d 100644
--- a/content/renderer/browser_plugin/mock_browser_plugin_manager.h
+++ b/content/renderer/browser_plugin/mock_browser_plugin_manager.h
@@ -28,9 +28,6 @@ class MockBrowserPluginManager : public BrowserPluginManager {
   // Provides access to the messages that have been received by this thread.
   IPC::TestSink& sink() { return sink_; }
 
-  // Allocates instance ID for the browser plugin.
-  void AllocateInstanceID(BrowserPlugin* browser_plugin);
-
   // RenderViewObserver override.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   virtual bool Send(IPC::Message* msg) OVERRIDE;
@@ -40,15 +37,12 @@ class MockBrowserPluginManager : public BrowserPluginManager {
 
  protected:
   virtual ~MockBrowserPluginManager();
-  void AllocateInstanceIDACK(BrowserPlugin* browser_plugin,
-                             int guest_instance_id);
 
   IPC::TestSink sink_;
 
   // The last known good deserializer for sync messages.
   scoped_ptr<IPC::MessageReplyDeserializer> reply_deserializer_;
 
-  int guest_instance_id_counter_;
   MockBrowserPlugin* last_plugin_;
 
   DISALLOW_COPY_AND_ASSIGN(MockBrowserPluginManager);