Chromecast buildfix: MetricsService has moved to metrics namespace.

chromecast/metrics/cast_metrics_service_client.h

 // 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.
 
 #ifndef CHROMECAST_METRICS_CAST_METRICS_SERVICE_CLIENT_H_
 #define CHROMECAST_METRICS_CAST_METRICS_SERVICE_CLIENT_H_
 
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "components/metrics/metrics_service_client.h"
 
-class MetricsService;
 class PrefService;
 
 namespace metrics {
+class MetricsService;
 class MetricsStateManager;
 }  // namespace metrics
 
 namespace net {
 class URLRequestContextGetter;
 }  // namespace net
 
 namespace chromecast {
 namespace metrics {
 
@@ skipping 26 matching lines @@
 
  private:
   explicit CastMetricsServiceClient(
       PrefService* pref_service,
       net::URLRequestContextGetter* request_context);
 
   // Returns whether or not metrics reporting is enabled.
   bool IsReportingEnabled();
 
   scoped_ptr< ::metrics::MetricsStateManager> metrics_state_manager_;
-  scoped_ptr<MetricsService> metrics_service_;
+  scoped_ptr< ::metrics::MetricsService> metrics_service_;
   net::URLRequestContextGetter* request_context_;
 
   DISALLOW_COPY_AND_ASSIGN(CastMetricsServiceClient);
 };
 
 }  // namespace metrics
 }  // namespace chromecast
 
 #endif  // CHROMECAST_METRICS_CAST_METRICS_SERVICE_CLIENT_H_