Removes MessageLoop::TYPE_XXX where possible

ui/message_center/message_center_impl_unittest.cc

 // Copyright 2013 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 "ui/message_center/message_center_impl.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 11 matching lines @@
 namespace {
 
 class MessageCenterImplTest : public testing::Test,
                               public MessageCenterObserver {
  public:
   MessageCenterImplTest() {}
 
   virtual void SetUp() OVERRIDE {
     MessageCenter::Initialize();
     message_center_ = MessageCenter::Get();
-    loop_.reset(new base::MessageLoop(base::MessageLoop::TYPE_DEFAULT));
+    loop_.reset(new base::MessageLoop);
     run_loop_.reset(new base::RunLoop());
     closure_ = run_loop_->QuitClosure();
   }
 
   virtual void TearDown() OVERRIDE {
     run_loop_.reset();
     loop_.reset();
     message_center_ = NULL;
     MessageCenter::Shutdown();
   }
@@ skipping 712 matching lines @@
   }
   EXPECT_EQ(3u, message_center()->UnreadNotificationCount());
 
   // Opening the message center will reset the unread count.
   message_center()->SetVisibility(VISIBILITY_MESSAGE_CENTER);
   EXPECT_EQ(0u, message_center()->UnreadNotificationCount());
 }
 
 }  // namespace internal
 }  // namespace message_center