Introduce MetricsServiceClient::StartGatheringMetrics

chrome/browser/metrics/metrics_service.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.
 
 //------------------------------------------------------------------------------
 // Description of the life cycle of a instance of MetricsService.
 //
 //  OVERVIEW
 //
 // A MetricsService instance is typically created at application startup.  It is
@@ skipping 962 matching lines @@
 void MetricsService::OpenNewLog() {
   DCHECK(!log_manager_.current_log());
 
   log_manager_.BeginLoggingWithLog(
       CreateLog(MetricsLog::ONGOING_LOG).PassAs<metrics::MetricsLogBase>());
   NotifyOnDidCreateMetricsLog();
   if (state_ == INITIALIZED) {
     // We only need to schedule that run once.
     state_ = INIT_TASK_SCHEDULED;
 
+    // TODO(blundell): Change the callback to be
+    // FinishedReceivingProfilerData() when the initial metrics gathering is
+    // moved to ChromeMetricsServiceClient.
+    client_->StartGatheringMetrics(base::Bind(&base::DoNothing));
+
     // Schedules a task on the file thread for execution of slower
     // initialization steps (such as plugin list generation) necessary
     // for sending the initial log.  This avoids blocking the main UI
     // thread.
     BrowserThread::PostDelayedTask(
         BrowserThread::FILE,
         FROM_HERE,
         base::Bind(&MetricsService::InitTaskGetHardwareClass,
             self_ptr_factory_.GetWeakPtr(),
             base::MessageLoop::current()->message_loop_proxy()),
@@ skipping 677 matching lines @@
 
   RecordPluginChanges(pref);
 }
 
 // static
 bool MetricsService::IsPluginProcess(int process_type) {
   return (process_type == content::PROCESS_TYPE_PLUGIN ||
           process_type == content::PROCESS_TYPE_PPAPI_PLUGIN ||
           process_type == content::PROCESS_TYPE_PPAPI_BROKER);
 }