Remove some TabContentses from extensions.

chrome/browser/extensions/api/web_navigation/web_navigation_api.cc

 // Copyright (c) 2012 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.
 
 // Implements the Chrome Extensions WebNavigation API.
 
 #include "chrome/browser/extensions/api/web_navigation/web_navigation_api.h"
 
 #include "base/lazy_instance.h"
 #include "chrome/browser/extensions/api/web_navigation/web_navigation_api_constants.h"
@@ skipping 630 matching lines @@
 
 bool GetFrameFunction::RunImpl() {
   scoped_ptr<GetFrame::Params> params(GetFrame::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params.get());
   int tab_id = params->details.tab_id;
   int frame_id = params->details.frame_id;
   int process_id = params->details.process_id;
 
   SetResult(Value::CreateNullValue());
 
-  TabContents* tab_contents;
+  content::WebContents* web_contents;
   if (!ExtensionTabUtil::GetTabById(tab_id,
                                     profile(),
                                     include_incognito(),
                                     NULL, NULL,
-                                    &tab_contents,
+                                    &web_contents,
                                     NULL) ||
-      !tab_contents) {
+      !web_contents) {
     return true;
   }
 
-  content::WebContents* web_contents = tab_contents->web_contents();
   WebNavigationTabObserver* observer =
       WebNavigationTabObserver::Get(web_contents);
   DCHECK(observer);
 
   const FrameNavigationState& frame_navigation_state =
       observer->frame_navigation_state();
 
   if (frame_id == 0)
     frame_id = frame_navigation_state.GetMainFrameID().frame_num;
 
@@ skipping 23 matching lines @@
   return true;
 }
 
 bool GetAllFramesFunction::RunImpl() {
   scoped_ptr<GetAllFrames::Params> params(GetAllFrames::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params.get());
   int tab_id = params->details.tab_id;
 
   SetResult(Value::CreateNullValue());
 
-  TabContents* tab_contents;
+  content::WebContents* web_contents;
   if (!ExtensionTabUtil::GetTabById(tab_id,
                                     profile(),
                                     include_incognito(),
                                     NULL, NULL,
-                                    &tab_contents,
+                                    &web_contents,
                                     NULL) ||
-      !tab_contents) {
+      !web_contents) {
     return true;
   }
 
-  content::WebContents* web_contents = tab_contents->web_contents();
   WebNavigationTabObserver* observer =
       WebNavigationTabObserver::Get(web_contents);
   DCHECK(observer);
 
   const FrameNavigationState& navigation_state =
       observer->frame_navigation_state();
 
   std::vector<linked_ptr<GetAllFrames::Results::DetailsElement> > result_list;
   for (FrameNavigationState::const_iterator it = navigation_state.begin();
        it != navigation_state.end(); ++it) {
@@ skipping 13 matching lines @@
         parent_frame_id.frame_num);
     frame->process_id = frame_id.render_view_host->GetProcess()->GetID();
     frame->error_occurred = navigation_state.GetErrorOccurredInFrame(frame_id);
     result_list.push_back(frame);
   }
   results_ = GetAllFrames::Results::Create(result_list);
   return true;
 }
 
 }  // namespace extensions