Remove ClonedInstallDetector/MachineIdProvider //content dependencies

chrome/browser/metrics/machine_id_provider_win_unittest.cc

 // Copyright 2014 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/metrics/machine_id_provider.h"
 
 #include "base/memory/ref_counted.h"
-#include "content/public/test/test_browser_thread_bundle.h"
+#include "base/message_loop/message_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace metrics {
 
 TEST(MachineIdProviderTest, GetId) {
-  content::TestBrowserThreadBundle thread_bundle;
+  base::MessageLoop message_loop;

[Ilya Sherman, 2014/05/19 13:24:02]

nit: Hmm, is this needed at all?  If so, should it be a MessageLoopForIO?

[blundell, 2014/05/19 13:31:23]

You're right, it looks like it's not needed (I don't have a windows machine to
build on). Removed.

On 2014/05/19 13:24:02, Ilya Sherman wrote:

 
   scoped_refptr<MachineIdProvider> provider(
       MachineIdProvider::CreateInstance());
   std::string id1 = provider->GetMachineId();
 
   EXPECT_NE(std::string(), id1);
 
   std::string id2 = provider->GetMachineId();
   EXPECT_EQ(id1, id2);
 }
 
 }  // namespace metrics