Move part of metrics from chrome/common to components

chrome/browser/metrics/metrics_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/metrics/metrics_service.h"
 
 #include <ctype.h>
 #include <string>
 
 #include "base/command_line.h"
 #include "base/threading/platform_thread.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/scoped_testing_local_state.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "components/variations/metrics_util.h"
 #include "content/public/common/process_type.h"
 #include "content/public/common/webplugininfo.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/size.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/metrics/metrics_log_chromeos.h"
 #endif  // OS_CHROMEOS
 
 namespace {
 
+using metrics::MetricsLogManager;
+
 class TestMetricsService : public MetricsService {
  public:
   TestMetricsService() {}
   virtual ~TestMetricsService() {}
 
   MetricsLogManager* log_manager() {
     return &log_manager_;
   }
 
  private:
@@ skipping 366 matching lines @@
     service.GetLowEntropySource();
 
     EXPECT_FALSE(GetLocalState()->GetBoolean(prefs::kMetricsResetIds));
   }
 
   std::string new_client_id =
       GetLocalState()->GetString(prefs::kMetricsClientID);
 
   EXPECT_NE(kInitialClientId, new_client_id);
 }