Move enable_webrtc to a buildflag header.

content/browser/renderer_host/media/audio_input_renderer_host.h

 // 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.
 //
 // AudioInputRendererHost serves audio related requests from audio capturer
 // which lives inside the render process and provide access to audio hardware.
 //
 // Create stream sequence (AudioInputController = AIC):
 //
 // AudioInputHostMsg_CreateStream -> OnCreateStream -> AIC::CreateLowLatency ->
@@ skipping 25 matching lines @@
 #include "base/memory/weak_ptr.h"
 #include "base/process/process.h"
 #include "base/sequenced_task_runner_helpers.h"
 #include "content/common/media/audio_messages.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "content/public/browser/browser_thread.h"
 #include "media/audio/audio_input_controller.h"
 #include "media/audio/audio_io.h"
 #include "media/audio/audio_logging.h"
 #include "media/audio/simple_sources.h"
+#include "media/media_features.h"
 
 namespace media {
 class AudioManager;
 class UserInputMonitor;
 }
 
 namespace content {
 class AudioMirroringManager;
 class MediaStreamManager;
 class RenderProcessHost;
@@ skipping 46 matching lines @@
 
   // Called from UI thread from the owner of this object.
   // |user_input_monitor| is used for typing detection and can be NULL.
   AudioInputRendererHost(int render_process_id,
                          int32_t renderer_pid,
                          media::AudioManager* audio_manager,
                          MediaStreamManager* media_stream_manager,
                          AudioMirroringManager* audio_mirroring_manager,
                          media::UserInputMonitor* user_input_monitor);
 
-#if defined(ENABLE_WEBRTC)
+#if BUILDFLAG(ENABLE_WEBRTC)
   // Enable and disable debug recording of input on all audio entries.
   void EnableDebugRecording(const base::FilePath& file);
   void DisableDebugRecording();
 #endif
 
   // BrowserMessageFilter implementation.
   void OnChannelClosing() override;
   void OnDestruct() const override;
   bool OnMessageReceived(const IPC::Message& message) override;
 
@@ skipping 92 matching lines @@
   // Search for a AudioEntry having the reference to |controller|.
   // This method is used to look up an AudioEntry after a controller
   // event is received.
   AudioEntry* LookupByController(media::AudioInputController* controller);
 
   // If ChromeOS and |config|'s layout has keyboard mic, unregister in
   // AudioInputDeviceManager.
   void MaybeUnregisterKeyboardMicStream(
       const AudioInputHostMsg_CreateStream_Config& config);
 
-#if defined(ENABLE_WEBRTC)
+#if BUILDFLAG(ENABLE_WEBRTC)
   void MaybeEnableDebugRecordingForId(int stream_id);
 
   base::FilePath GetDebugRecordingFilePathWithExtensions(
       const base::FilePath& file);
 
   void EnableDebugRecordingForId(const base::FilePath& file, int stream_id);
 
   void DoEnableDebugRecording(int stream_id, base::File file);
   void DoDisableDebugRecording(int stream_id);
 
@@ skipping 25 matching lines @@
   std::unique_ptr<media::AudioLog> audio_log_;
 
   base::WeakPtrFactory<AudioInputRendererHost> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioInputRendererHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_RENDERER_HOST_H_