Moved the following IPCs out of chrome into content where they are handled by

chrome/browser/ui/tab_contents/tab_contents_wrapper.h

 // Copyright (c) 2011 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_UI_TAB_CONTENTS_TAB_CONTENTS_WRAPPER_H_
 #define CHROME_BROWSER_UI_TAB_CONTENTS_TAB_CONTENTS_WRAPPER_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 192 matching lines @@
   }
 
   TranslateTabHelper* translate_tab_helper() {
     return translate_tab_helper_.get();
   }
 
   WebIntentPickerController* web_intent_picker_controller() {
     return web_intent_picker_controller_.get();
   }
 
+  PluginObserver* plugin_observer() {

[jam, 2011/09/03 00:10:47]

only tabhelpers have getters, not observers. but it seems like there's no reason
to have that code in pluginobserver anymore since it's not observing that
message

(see line 272 and 325)

[ananta, 2011/09/03 00:43:23]

Removed

+    return plugin_observer_.get();
+  }
+
   // Overrides -----------------------------------------------------------------
 
   // TabContentsObserver overrides:
   virtual void RenderViewCreated(RenderViewHost* render_view_host) OVERRIDE;
   virtual void RenderViewGone() OVERRIDE;
   virtual void DidBecomeSelected() OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   virtual void TabContentsDestroyed(TabContents* tab) OVERRIDE;
 
   // NotificationObserver overrides:
@@ skipping 104 matching lines @@
 
   // The supporting objects need to outlive the TabContents dtor (as they may
   // be called upon during its execution). As a result, this must come last
   // in the list.
   scoped_ptr<TabContents> tab_contents_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContentsWrapper);
 };
 
 #endif  // CHROME_BROWSER_UI_TAB_CONTENTS_TAB_CONTENTS_WRAPPER_H_