Removes MessageLoop::TYPE_XXX where possible

chrome/browser/themes/theme_syncable_service_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/theme_syncable_service.h"
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 150 matching lines @@
   EXPECT_TRUE(extension.get());
   EXPECT_EQ("", error);
   return extension;
 }
 
 }  // namespace
 
 class ThemeSyncableServiceTest : public testing::Test {
  protected:
   ThemeSyncableServiceTest()
-      : loop_(base::MessageLoop::TYPE_DEFAULT),
-        ui_thread_(content::BrowserThread::UI, &loop_),
+      : ui_thread_(content::BrowserThread::UI, &loop_),
         file_thread_(content::BrowserThread::FILE, &loop_),
         fake_theme_service_(NULL) {}
 
   virtual ~ThemeSyncableServiceTest() {}
 
   virtual void SetUp() {
     profile_.reset(new TestingProfile);
     fake_theme_service_ = BuildForProfile(profile_.get());
     theme_sync_service_.reset(new ThemeSyncableService(profile_.get(),
                                                        fake_theme_service_));
@@ skipping 438 matching lines @@
 
 TEST_F(PolicyInstalledThemeTest, InstallThemeByPolicy) {
   // Set up theme service to use custom theme that was installed by policy.
   fake_theme_service_->SetTheme(theme_extension_.get());
 
   syncer::SyncDataList data_list =
       theme_sync_service_->GetAllSyncData(syncer::THEMES);
 
   ASSERT_EQ(0u, data_list.size());
 }