Add custom default theme support and create a managed user default theme.

chrome/browser/themes/browser_theme_pack_unittest.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.
 
 #include "chrome/browser/themes/browser_theme_pack.h"
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/json/json_reader.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "base/values.h"
 #include "chrome/browser/themes/theme_properties.h"
 #include "chrome/common/chrome_paths.h"
 #include "content/public/test/test_browser_thread.h"
 #include "grit/theme_resources.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/color_utils.h"
+#include "ui/gfx/image/image.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/image/image_skia_rep.h"
 
 using content::BrowserThread;
 using extensions::Extension;
 
 // Maps scale factors (enum values) to file path.
 // A similar typedef in BrowserThemePack is private.
 typedef std::map<ui::ScaleFactor, base::FilePath> TestScaleFactorToFileMap;
 
@@ skipping 572 matching lines @@
   }
 
   // Part 2: Try to read back the data pack that we just wrote to disk.
   {
     scoped_refptr<BrowserThemePack> pack =
         BrowserThemePack::BuildFromDataPack(file, "gllekhaobjnhgeag");
     ASSERT_TRUE(pack.get());
     VerifyHiDpiTheme(pack.get());
   }
 }