Chromecast: adds callback for CastService to control metrics state.

chromecast/service/cast_service.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/service/cast_service.h"
 
 #include "base/logging.h"
 #include "base/threading/thread_checker.h"
 
 namespace chromecast {
 
-CastService::CastService(content::BrowserContext* browser_context)
+CastService::CastService(
+    content::BrowserContext* browser_context,
+    const OptInStatsChangedCallback& opt_in_stats_callback)
     : browser_context_(browser_context),
+      opt_in_stats_callback_(opt_in_stats_callback),
       stopped_(true),
       thread_checker_(new base::ThreadChecker()) {
 }
 
 CastService::~CastService() {
   DCHECK(thread_checker_->CalledOnValidThread());
   DCHECK(stopped_);
 }
 
 void CastService::Start() {
   DCHECK(thread_checker_->CalledOnValidThread());
 
   Initialize();
   stopped_ = false;
   StartInternal();
 }
 
 void CastService::Stop() {
   DCHECK(thread_checker_->CalledOnValidThread());
   StopInternal();
   stopped_ = true;
 }
 
 }  // namespace chromecast