Reland of Android: enable H264&VP8 HW accelerator for MediaRecorder

content/renderer/media_recorder/video_track_recorder.h

Index: content/renderer/media_recorder/video_track_recorder.h
diff --git a/content/renderer/media_recorder/video_track_recorder.h b/content/renderer/media_recorder/video_track_recorder.h
index 53a871f32512a7e4a4a23462fa26e568ac1c6fcc..046b1adcaeeae22f02f30044ea1e68799215f5bb 100644
--- a/content/renderer/media_recorder/video_track_recorder.h
+++ b/content/renderer/media_recorder/video_track_recorder.h
@@ -18,6 +18,12 @@
 #include "third_party/WebKit/public/platform/WebMediaStreamTrack.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
+#if BUILDFLAG(RTC_USE_H264) || defined(OS_ANDROID)
+// H264 encoding is supported on Android using the platform encode
+// accelerator, and elsewhere using OpenH264.
+#define IS_H264_SUPPORTED
+#endif
+
 namespace base {
 class Thread;
 }  // namespace base
@@ -32,8 +38,13 @@
 }  // 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 {
@@ -51,7 +62,7 @@
   enum class CodecId {
     VP8,
     VP9,
-#if BUILDFLAG(RTC_USE_H264)
+#if defined(IS_H264_SUPPORTED)
     H264,
 #endif
     LAST