Use proper namespace in skia/ext

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

 // 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.
 
 #import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
 
 #import <QuartzCore/QuartzCore.h>
 
 #include <cmath>
 #include <limits>
@@ skipping 1538 matching lines @@
   extensions::TabHelper* extensions_tab_helper =
       extensions::TabHelper::FromWebContents(contents);
   BOOL isApp = extensions_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 = extensions_tab_helper->GetExtensionAppIcon();
     if (icon)
-      image = gfx::SkBitmapToNSImageWithColorSpace(*icon, colorSpace);
+      image = skia::SkBitmapToNSImageWithColorSpace(*icon, colorSpace);
   } else {
     image = mac::FaviconForWebContents(contents);
   }
 
   // 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)
     image = defaultFavicon_.get();
 
   return image;
@@ skipping 820 matching lines @@
                     forButtonState:image_button_cell::kHoverStateBackground];
   } else {
     [[newTabButton_ cell] setImage:nil
                     forButtonState:image_button_cell::kDefaultStateBackground];
     [[newTabButton_ cell] setImage:nil
                     forButtonState:image_button_cell::kHoverStateBackground];
   }
 }
 
 @end