Remove unused tab_contents variable.

chrome/browser/automation/automation_provider.cc

 // Copyright (c) 2009 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.
 
 #include "chrome/browser/automation/automation_provider.h"
 
 #include <set>
 
 #include "app/l10n_util.h"
 #include "app/message_box_flags.h"
@@ skipping 1832 matching lines @@
                                           const std::string& encoding_name,
                                           bool* success) {
   *success = false;
 #if defined(OS_WIN)
   if (tab_tracker_->ContainsHandle(tab_handle)) {
     NavigationController* nav = tab_tracker_->GetResource(tab_handle);
     Browser* browser = FindAndActivateTab(nav);
     DCHECK(browser);
 
     if (browser->command_updater()->IsCommandEnabled(IDC_ENCODING_MENU)) {
-      TabContents* tab_contents = nav->tab_contents();
       int selected_encoding_id =
           CharacterEncoding::GetCommandIdByCanonicalEncodingName(encoding_name);
       if (selected_encoding_id) {
         browser->OverrideEncoding(selected_encoding_id);
         *success = true;
       }
     }
   }
 #else
   // TODO(port): Enable when encoding-related parts of Browser are ported.
@@ skipping 192 matching lines @@
   for (;iter != BrowserList::end(); ++iter) {
     gfx::NativeWindow this_window = (*iter)->window()->GetNativeHandle();
     if (window == this_window) {
       // Add() returns the existing handle for the resource if any.
       *browser_handle = browser_tracker_->Add(*iter);
       *success = true;
       return;
     }
   }
 }