Add distinction between RGB and RGBA native texture video frames and resources

media/base/video_frame.cc

Index: media/base/video_frame.cc
diff --git a/media/base/video_frame.cc b/media/base/video_frame.cc
index c837159958739edb5d4d3708d1dab8af0bc45562..ac34ba8e29e2fd601509f87378ff80b243bbbde3 100644
--- a/media/base/video_frame.cc
+++ b/media/base/video_frame.cc
@@ -249,7 +249,8 @@ scoped_refptr<VideoFrame> VideoFrame::WrapNativeTexture(
     const gfx::Rect& visible_rect,
     const gfx::Size& natural_size,
     base::TimeDelta timestamp,
-    bool allow_overlay) {
+    bool allow_overlay,
+    bool has_alpha) {
   scoped_refptr<VideoFrame> frame(new VideoFrame(NATIVE_TEXTURE,
                                                  coded_size,
                                                  visible_rect,
@@ -259,6 +260,7 @@ scoped_refptr<VideoFrame> VideoFrame::WrapNativeTexture(
                                                  false));
   frame->mailbox_holder_release_cb_ = mailbox_holder_release_cb;
   frame->allow_overlay_ = allow_overlay;
+  frame->has_alpha_ = has_alpha;
 
   return frame;
 }
@@ -677,7 +679,8 @@ VideoFrame::VideoFrame(VideoFrame::Format format,
       timestamp_(timestamp),
       release_sync_point_(0),
       end_of_stream_(end_of_stream),
-      allow_overlay_(false) {
+      allow_overlay_(false),
+      has_alpha_(false) {
   DCHECK(IsValidConfig(format_, coded_size_, visible_rect_, natural_size_));
 
   memset(&strides_, 0, sizeof(strides_));