Get rid of extensions dependency from content\browser.

chrome/browser/ui/cocoa/tabs/tab_strip_controller.mm

 // 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.
 
 #import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
 
 #import <QuartzCore/QuartzCore.h>
 
 #include <limits>
 #include <string>
 
 #include "app/mac/nsimage_cache.h"
 #include "base/command_line.h"
 #include "base/mac/mac_util.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/autocomplete/autocomplete.h"
 #include "chrome/browser/autocomplete/autocomplete_classifier.h"
 #include "chrome/browser/autocomplete/autocomplete_match.h"
+#include "chrome/browser/extensions/extension_tab_helper.h"
 #include "chrome/browser/metrics/user_metrics.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/debugger/devtools_window.h"
 #include "chrome/browser/net/url_fixer_upper.h"
 #include "chrome/browser/sidebar/sidebar_container.h"
 #include "chrome/browser/sidebar/sidebar_manager.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_navigator.h"
@@ skipping 1290 matching lines @@
   [[NSNotificationCenter defaultCenter]
       postNotificationName:kTabStripNumberOfTabsChanged
                     object:self];
 
   [delegate_ onTabDetachedWithContents:contents->tab_contents()];
 }
 
 // A helper routine for creating an NSImageView to hold the favicon or app icon
 // for |contents|.
 - (NSImageView*)iconImageViewForContents:(TabContents*)contents {
-  BOOL isApp = contents->is_app();
+  TabContentsWrapper* wrapper =
+      TabContentsWrapper::GetCurrentWrapperForContents(contents);
+  BOOL isApp = wrapper->extension_tab_helper()->is_app();
   NSImage* image = nil;
   // Favicons come from the renderer, and the renderer draws everything in the
   // system color space.
   CGColorSpaceRef colorSpace = base::mac::GetSystemColorSpace();
   if (isApp) {
-    SkBitmap* icon = contents->GetExtensionAppIcon();
+    SkBitmap* icon = wrapper->extension_tab_helper()->GetExtensionAppIcon();
     if (icon)
       image = gfx::SkBitmapToNSImageWithColorSpace(*icon, colorSpace);
   } else {
     image = gfx::SkBitmapToNSImageWithColorSpace(contents->GetFavicon(),
                                                  colorSpace);
   }
 
   // Either we don't have a valid favicon or there was some issue converting it
   // from an SkBitmap. Either way, just show the default.
   if (!image)
@@ skipping 737 matching lines @@
   }
 
   NSString* menuTitle =
       l10n_util::GetNSStringWithFixup(IDS_PROFILES_CREATE_NEW_PROFILE_OPTION);
   [menu addItemWithTitle:menuTitle
                   action:NULL
            keyEquivalent:@""];
 }
 
 @end