Chromecast: adds callback for CastService to control metrics state.

chromecast/metrics/cast_metrics_service_client.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 "chromecast/metrics/cast_metrics_service_client.h"
 
 #include "base/command_line.h"
 #include "base/i18n/rtl.h"
 #include "chromecast/common/chromecast_config.h"
 #include "chromecast/common/chromecast_switches.h"
@@ skipping 87 matching lines @@
   DCHECK(!uma_server_url.empty());
   return scoped_ptr< ::metrics::MetricsLogUploader>(
       new ::metrics::NetMetricsLogUploader(
           request_context_,
           uma_server_url,
           mime_type,
           on_upload_complete));
 }
 
 void CastMetricsServiceClient::EnableMetricsService(bool enabled) {
+  if (!metrics_service_loop_->BelongsToCurrentThread()) {
+    metrics_service_loop_->PostTask(
+        FROM_HERE,
+        base::Bind(&CastMetricsServiceClient::EnableMetricsService,
+                   base::Unretained(this),
+                   enabled));
+    return;
+  }
+
   if (enabled) {
     metrics_service_->Start();
   } else {
     metrics_service_->Stop();
   }
 }
 
 CastMetricsServiceClient::CastMetricsServiceClient(
     base::TaskRunner* io_task_runner,
     PrefService* pref_service,
     net::URLRequestContextGetter* request_context)
     : metrics_state_manager_(::metrics::MetricsStateManager::Create(
           pref_service,
           base::Bind(&CastMetricsServiceClient::IsReportingEnabled,
                      base::Unretained(this)),
                      base::Bind(&StoreClientInfo),
                      base::Bind(&LoadClientInfo))),
       metrics_service_(new ::metrics::MetricsService(
           metrics_state_manager_.get(),
           this,
           pref_service)),
+      metrics_service_loop_(base::MessageLoopProxy::current()),
       request_context_(request_context) {
   // Always create a client id as it may also be used by crash reporting,
   // (indirectly) included in feedback, and can be queried during setup.
   // For UMA and crash reporting, associated opt-in settings will control
   // sending reports as directed by the user.
   // For Setup (which also communicates the user's opt-in preferences),
   // report the client-id and expect that setup will handle the current opt-in
   // value.
   metrics_state_manager_->ForceClientIdCreation();
 
@@ skipping 16 matching lines @@
 
 CastMetricsServiceClient::~CastMetricsServiceClient() {
 }
 
 bool CastMetricsServiceClient::IsReportingEnabled() {
   return PlatformIsReportingEnabled();
 }
 
 }  // namespace metrics
 }  // namespace chromecast