Move ui::gfx::Image out of the ui namespace to be just gfx::Image.

ui/gfx/image_unittest.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.
 
-// Because the unit tests for ui::gfx::Image are spread across multiple
+// Because the unit tests for gfx::Image are spread across multiple
 // implementation files, this header contains the reusable components.
 
 #ifndef UI_GFX_IMAGE_UNITTEST_H_
 #define UI_GFX_IMAGE_UNITTEST_H_
 
 #include "base/scoped_ptr.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 #if defined(OS_LINUX)
 #include "ui/gfx/gtk_util.h"
 #elif defined(OS_MACOSX)
 #include "base/mac/mac_util.h"
 #include "skia/ext/skia_utils_mac.h"
 #endif
 
-namespace ui {
 namespace gfx {
 namespace test {
 
 #if defined(OS_MACOSX)
 typedef NSImage* PlatformImage;
 #elif defined(OS_LINUX) && !defined(TOOLKIT_VIEWS)
 typedef GdkPixbuf* PlatformImage;
 #else
 typedef const SkBitmap* PlatformImage;
 #endif
@@ skipping 14 matching lines @@
   return image;
 #elif defined(OS_LINUX) && !defined(TOOLKIT_VIEWS)
   return ::gfx::GdkPixbufFromSkBitmap(bitmap.get());
 #else
   return bitmap.release();
 #endif
 }
 
 }  // namespace test
 }  // namespace gfx
-}  // namespace ui
 
 #endif  // UI_GFX_IMAGE_UNITTEST_H_