Chromecast buildfix: MetricsService has moved to metrics namespace.

R=isherman@chromium.org,lcwu@chromium.org
BUG=374763

Review URL: https://codereview.chromium.org/510483004

Cr-Commit-Position: refs/heads/master@{#292068}

chromecast/metrics/cast_metrics_prefs.cc

@@ -10,7 +10,7 @@ namespace chromecast {
 namespace metrics {
 
 void RegisterPrefs(PrefRegistrySimple* registry) {
-  MetricsService::RegisterPrefs(registry);
+  ::metrics::MetricsService::RegisterPrefs(registry);
 }
 
 }  // namespace metrics

chromecast/metrics/cast_metrics_service_client.cc

@@ -94,7 +94,7 @@ CastMetricsServiceClient::CastMetricsServiceClient(
                      base::Unretained(this)),
                      ::metrics::MetricsStateManager::StoreClientInfoCallback(),
                      ::metrics::MetricsStateManager::LoadClientInfoCallback())),
-      metrics_service_(new MetricsService(
+      metrics_service_(new ::metrics::MetricsService(
           metrics_state_manager_.get(),
           this,
           ChromecastConfig::GetInstance()->pref_service())),

chromecast/metrics/cast_metrics_service_client.h

@@ -12,10 +12,10 @@
 #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
 
@@ -62,7 +62,7 @@ class CastMetricsServiceClient : public ::metrics::MetricsServiceClient {
   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);

chromecast/metrics/platform_metrics_providers.h

@@ -7,13 +7,16 @@
 
 #include "components/metrics/proto/system_profile.pb.h"
 
+namespace metrics {
 class MetricsService;
+}
 
 namespace chromecast {
 namespace metrics {
 
 // Build-level hook for different platforms to provide data to MetricsService.
-void RegisterPlatformMetricsProviders(MetricsService* metrics_service);
+void RegisterPlatformMetricsProviders(
+    ::metrics::MetricsService* metrics_service);
 
 // Returns the current release channel.
 ::metrics::SystemProfileProto::Channel GetPlatformReleaseChannel();

chromecast/metrics/platform_metrics_providers_simple.cc

@@ -7,7 +7,8 @@
 namespace chromecast {
 namespace metrics {
 
-void RegisterPlatformMetricsProviders(MetricsService* metrics_service) {
+void RegisterPlatformMetricsProviders(
+    ::metrics::MetricsService* metrics_service) {
 }
 
 ::metrics::SystemProfileProto::Channel GetPlatformReleaseChannel() {