Get rid of a bunch of view_messages.h includes from chrome by making the TabContentsObserver inte...

chrome/browser/content_settings/tab_specific_content_settings.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_CONTENT_SETTINGS_TAB_SPECIFIC_CONTENT_SETTINGS_H_
 #define CHROME_BROWSER_CONTENT_SETTINGS_TAB_SPECIFIC_CONTENT_SETTINGS_H_
 #pragma once
 
 #include <set>
 #include <string>
@@ skipping 144 matching lines @@
 
   bool load_plugins_link_enabled() { return load_plugins_link_enabled_; }
   void set_load_plugins_link_enabled(bool enabled) {
     load_plugins_link_enabled_ = enabled;
   }
 
   // TabContentsObserver overrides.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   virtual void DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
-      const ViewHostMsg_FrameNavigate_Params& params) OVERRIDE;
+      const content::FrameNavigateParams& params) OVERRIDE;
   virtual void DidStartProvisionalLoadForFrame(
       int64 frame_id,
       bool is_main_frame,
       const GURL& validated_url,
       bool is_error_page,
       RenderViewHost* render_view_host) OVERRIDE;
   virtual void AppCacheAccessed(const GURL& manifest_url,
                                 bool blocked_by_policy) OVERRIDE;
 
   // Message handlers. Public for testing.
@@ skipping 107 matching lines @@
 
   // Stores whether the user can load blocked plugins on this page.
   bool load_plugins_link_enabled_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(TabSpecificContentSettings);
 };
 
 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_TAB_SPECIFIC_CONTENT_SETTINGS_H_