MediaRecorder: enable encode acceleration for VP8 in Android

This is a refry of https://crrev.com/2801803002 (as pointed out
in https://crrev.com/2836013006) that enables only VP8
hardware encoding in Android.

Tested via webrtc_media_recorder_browsertest.cc [1]

[1] https://cs.chromium.org/chromium/src/content/browser/webrtc/webrtc_media_recorder_browsertest.cc?q=webrtc+mediarecorder&sq=package:chromium&dr=CSs&l=27

BUG=638664

Review-Url: https://codereview.chromium.org/2852583002
Cr-Commit-Position: refs/heads/master@{#467879}

content/renderer/media_recorder/video_track_recorder.cc

@@ -109,11 +109,6 @@ CodecEnumerator::CodecEnumerator() {
   return;
 #endif
 
-#if defined(OS_ANDROID)
-  // See https://crbug.com/653864.
-  return;
-#endif
-
   content::RenderThreadImpl* const render_thread_impl =
       content::RenderThreadImpl::current();
   if (!render_thread_impl) {
@@ -132,12 +127,17 @@ CodecEnumerator::CodecEnumerator() {
       gpu_factories->GetVideoEncodeAcceleratorSupportedProfiles();
   for (const auto& supported_profile : vea_supported_profiles) {
     for (auto& codec_id_and_profile : kPreferredCodecIdAndVEAProfiles) {
-      if (supported_profile.profile >= codec_id_and_profile.min_profile &&
-          supported_profile.profile <= codec_id_and_profile.max_profile) {
-        DVLOG(2) << "Accelerated codec found: "
-                 << media::GetProfileName(supported_profile.profile);
-        codec_id_to_profile_.insert(std::make_pair(
-            codec_id_and_profile.codec_id, supported_profile.profile));
+      const media::VideoCodecProfile codec = supported_profile.profile;
+#if defined(OS_ANDROID)
+      // TODO(mcasas): enable other codecs, https://crbug.com/653864.
+      if (codec < media::VP8PROFILE_MIN || codec > media::VP8PROFILE_MAX)
+        continue;
+#endif
+      if (codec >= codec_id_and_profile.min_profile &&
+          codec <= codec_id_and_profile.max_profile) {
+        DVLOG(2) << "Accelerated codec found: " << media::GetProfileName(codec);
+        codec_id_to_profile_.insert(
+            std::make_pair(codec_id_and_profile.codec_id, codec));
       }
     }
   }

content/renderer/media_recorder/video_track_recorder.h

@@ -32,8 +32,13 @@ class VideoFrame;
 }  // namespace media
 
 namespace video_track_recorder {
+#if defined(OS_ANDROID)
+const int kVEAEncoderMinResolutionWidth = 176;
+const int kVEAEncoderMinResolutionHeight = 144;
+#else
 const int kVEAEncoderMinResolutionWidth = 640;
 const int kVEAEncoderMinResolutionHeight = 480;
+#endif
 }  // namespace video_track_recorder
 
 namespace content {