fix build when ffmpeg, libvpx and libwebm are disabled

content/renderer/media/media_recorder_handler.cc

 // Copyright 2015 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 "content/renderer/media/media_recorder_handler.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "content/renderer/media/video_track_recorder.h"
 #include "content/renderer/media/webrtc_uma_histograms.h"
 #include "media/base/bind_to_current_loop.h"
 #include "media/base/video_frame.h"
-#include "media/capture/webm_muxer.h"
 #include "third_party/WebKit/public/platform/WebMediaRecorderHandlerClient.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 
+#if !defined(MEDIA_DISABLE_LIBWEBM)
+#include "media/capture/webm_muxer.h"
+#endif
+
 using base::TimeDelta;
 using base::TimeTicks;
 
 namespace content {
 
 MediaRecorderHandler::MediaRecorderHandler()
     : use_vp9_(false),
       recording_(false),
       client_(nullptr),
       weak_factory_(this) {
@@ skipping 39 matching lines @@
 bool MediaRecorderHandler::start() {
   DCHECK(main_render_thread_checker_.CalledOnValidThread());
   DCHECK(!recording_);
   return start(0);
 }
 
 bool MediaRecorderHandler::start(int timeslice) {
   DCHECK(main_render_thread_checker_.CalledOnValidThread());
   DCHECK(!recording_);
   DCHECK(!media_stream_.isNull());
+  DCHECK(timeslice_.is_zero());
+
+#if !defined(MEDIA_DISABLE_LIBWEBM)
   DCHECK(!webm_muxer_);
-  DCHECK(timeslice_.is_zero());
+  webm_muxer_.reset(
+      new media::WebmMuxer(use_vp9_ ? media::kCodecVP9 : media::kCodecVP8,
+                           base::Bind(&MediaRecorderHandler::WriteData,
+                                      weak_factory_.GetWeakPtr())));
+#else
+  return false;
+#endif
 
   timeslice_ = TimeDelta::FromMilliseconds(timeslice);
   slice_origin_timestamp_ = TimeTicks::Now();
 
-  webm_muxer_.reset(
-      new media::WebmMuxer(use_vp9_ ? media::kCodecVP9 : media::kCodecVP8,
-                           base::Bind(&MediaRecorderHandler::WriteData,
-                                      weak_factory_.GetWeakPtr())));
-
   blink::WebVector<blink::WebMediaStreamTrack> video_tracks;
   media_stream_.videoTracks(video_tracks);
 
   if (video_tracks.isEmpty()) {
     // TODO(mcasas): Add audio_tracks and update the code in this function
     // correspondingly, see http://crbug.com/528519. As of now, only video
     // tracks are supported.
     LOG(WARNING) << "Recording no video tracks is not implemented";
     return false;
   }
@@ skipping 17 matching lines @@
   return true;
 }
 
 void MediaRecorderHandler::stop() {
   DCHECK(main_render_thread_checker_.CalledOnValidThread());
   DCHECK(recording_);
 
   recording_ = false;
   timeslice_ = TimeDelta::FromMilliseconds(0);
   video_recorders_.clear();
+#if !defined(MEDIA_DISABLE_LIBWEBM)
   webm_muxer_.reset();
+#endif
 }
 
 void MediaRecorderHandler::pause() {
   DCHECK(main_render_thread_checker_.CalledOnValidThread());
   DCHECK(recording_);
   recording_ = false;
   for (const auto& video_recorder : video_recorders_)
     video_recorder->Pause();
 }
 
 void MediaRecorderHandler::resume() {
   DCHECK(main_render_thread_checker_.CalledOnValidThread());
   DCHECK(!recording_);
   recording_ = true;
   for (const auto& video_recorder : video_recorders_)
     video_recorder->Resume();
 }
 
 void MediaRecorderHandler::OnEncodedVideo(
     const scoped_refptr<media::VideoFrame>& video_frame,
     scoped_ptr<std::string> encoded_data,
     TimeTicks timestamp,
     bool is_key_frame) {
   DCHECK(main_render_thread_checker_.CalledOnValidThread());
+#if !defined(MEDIA_DISABLE_LIBWEBM)
   if (!webm_muxer_)
     return;
   webm_muxer_->OnEncodedVideo(video_frame, encoded_data.Pass(), timestamp,
                               is_key_frame);
+#endif
 }
 
 void MediaRecorderHandler::WriteData(base::StringPiece data) {
   DCHECK(main_render_thread_checker_.CalledOnValidThread());
 
   // Non-buffered mode does not need to check timestamps.
   if (timeslice_.is_zero()) {
     client_->writeData(data.data(), data.length(), true  /* lastInSlice */);
     return;
   }
 
   const TimeTicks now = TimeTicks::Now();
   const bool last_in_slice = now > slice_origin_timestamp_ + timeslice_;
   DVLOG_IF(1, last_in_slice) << "Slice finished @ " << now;
   if (last_in_slice)
     slice_origin_timestamp_ = now;
   client_->writeData(data.data(), data.length(), last_in_slice);
 }
 
 void MediaRecorderHandler::OnVideoFrameForTesting(
     const scoped_refptr<media::VideoFrame>& frame,
     const TimeTicks& timestamp) {
   for (auto* recorder : video_recorders_)
     recorder->OnVideoFrameForTesting(frame, timestamp);
 }
 
 }  // namespace content