Cleanup: Change chrome/chrome_browser_extensions.gypi to be inclusive rather than exclusive.

chrome/browser/extensions/api/audio/audio_service_linux.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 "chrome/browser/extensions/api/audio/audio_service.h"
 
 #include "base/callback.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/strings/string_number_conversions.h"
+#include "base/threading/thread_checker.h"
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
 
 namespace extensions {
 
 using api::audio::OutputDeviceInfo;
 using api::audio::InputDeviceInfo;
 
 class AudioServiceImpl : public AudioService {
  public:
   AudioServiceImpl();
   virtual ~AudioServiceImpl();
 
+ private:
   // Called by listeners to this service to add/remove themselves as observers.
   virtual void AddObserver(AudioService::Observer* observer) OVERRIDE;
   virtual void RemoveObserver(AudioService::Observer* observer) OVERRIDE;
 
   // Start to query audio device information.
   virtual void StartGetInfo(const GetInfoCallback& callback) OVERRIDE;
   virtual void SetActiveDevices(const DeviceIdList& device_list) OVERRIDE;
   virtual bool SetDeviceProperties(const std::string& device_id,
                                    bool muted,
                                    int volume,
                                    int gain) OVERRIDE;
 
   // List of observers.
   ObserverList<AudioService::Observer> observer_list_;
 
+  base::ThreadChecker thread_checker_;
+
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate the weak pointers before any other members are destroyed.
   base::WeakPtrFactory<AudioServiceImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioServiceImpl);
 };
 
 AudioServiceImpl::AudioServiceImpl() : weak_ptr_factory_(this) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  DCHECK(thread_checker_.CalledOnValidThread());
 }
 
 AudioServiceImpl::~AudioServiceImpl() {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  DCHECK(thread_checker_.CalledOnValidThread());
 }
 
 void AudioServiceImpl::AddObserver(AudioService::Observer* observer) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  DCHECK(thread_checker_.CalledOnValidThread());
   observer_list_.AddObserver(observer);
 }
 
 void AudioServiceImpl::RemoveObserver(AudioService::Observer* observer) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  DCHECK(thread_checker_.CalledOnValidThread());
   observer_list_.RemoveObserver(observer);
 }
 
 void AudioServiceImpl::StartGetInfo(const GetInfoCallback& callback) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  DCHECK(thread_checker_.CalledOnValidThread());
   if (!callback.is_null())
     callback.Run(OutputInfo(), InputInfo(), false);
 }
 
 void AudioServiceImpl::SetActiveDevices(const DeviceIdList& device_list) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  DCHECK(thread_checker_.CalledOnValidThread());
 }
 
 bool AudioServiceImpl::SetDeviceProperties(const std::string& device_id,
                                            bool muted,
                                            int volume,
                                            int gain) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  DCHECK(thread_checker_.CalledOnValidThread());
   return false;
 }
 
 AudioService* AudioService::CreateInstance() {
   return new AudioServiceImpl;
 }
 
 }  // namespace extensions