Only allow webrtc HW offload for H264 encode for extension process.

content/renderer/media/rtc_video_encoder_factory.cc

 // Copyright 2013 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/rtc_video_encoder_factory.h"
 
+#include "base/command_line.h"
 #include "content/common/gpu/client/gpu_video_encode_accelerator_host.h"
 #include "content/renderer/media/rtc_video_encoder.h"
+#include "extensions/common/switches.h"
 #include "media/filters/gpu_video_accelerator_factories.h"
 #include "media/video/video_encode_accelerator.h"
 
 namespace content {
 
 namespace {
 
+bool IsExtensionProcess() {
+  return CommandLine::ForCurrentProcess()->HasSwitch(
+      extensions::switches::kExtensionProcess);
+}
+
 // Translate from media::VideoEncodeAccelerator::SupportedProfile to
 // one or more instances of cricket::WebRtcVideoEncoderFactory::VideoCodec
 std::vector<cricket::WebRtcVideoEncoderFactory::VideoCodec> VEAToWebRTCCodecs(
     const media::VideoEncodeAccelerator::SupportedProfile& profile) {
   int width = profile.max_resolution.width();
   int height = profile.max_resolution.height();
   int fps = profile.max_framerate.numerator;
   DCHECK_EQ(profile.max_framerate.denominator, 1U);
 
   std::vector<cricket::WebRtcVideoEncoderFactory::VideoCodec> codecs;
   if (profile.profile >= media::VP8PROFILE_MIN &&
       profile.profile <= media::VP8PROFILE_MAX) {
     codecs.push_back(cricket::WebRtcVideoEncoderFactory::VideoCodec(
         webrtc::kVideoCodecVP8, "VP8", width, height, fps));
   } else if (profile.profile >= media::H264PROFILE_MIN &&
              profile.profile <= media::H264PROFILE_MAX) {
     codecs.push_back(cricket::WebRtcVideoEncoderFactory::VideoCodec(
         webrtc::kVideoCodecGeneric, "CAST1", width, height, fps));
-    codecs.push_back(cricket::WebRtcVideoEncoderFactory::VideoCodec(
-        webrtc::kVideoCodecH264, "H264", width, height, fps));
+    if (IsExtensionProcess()) {
+      codecs.push_back(cricket::WebRtcVideoEncoderFactory::VideoCodec(
+          webrtc::kVideoCodecH264, "H264", width, height, fps));
+    }
   }
 
   return codecs;
 }
 
 // Translate from cricket::WebRtcVideoEncoderFactory::VideoCodec to
 // media::VideoCodecProfile.  Pick a default profile for each codec type.
 media::VideoCodecProfile WebRTCCodecToVideoCodecProfile(
     webrtc::VideoCodecType type) {
   switch (type) {
@@ skipping 48 matching lines @@
 RTCVideoEncoderFactory::codecs() const {
   return codecs_;
 }
 
 void RTCVideoEncoderFactory::DestroyVideoEncoder(
     webrtc::VideoEncoder* encoder) {
   delete encoder;
 }
 
 }  // namespace content