gpu: Add CopyTexImage function to GLImage API.

content/common/gpu/stream_texture_android.cc

Index: content/common/gpu/stream_texture_android.cc
diff --git a/content/common/gpu/stream_texture_android.cc b/content/common/gpu/stream_texture_android.cc
index 27dd0f7c08fb6cc06932634ecd0773a164d29944..d67d94ed69292aa33c5a4bdcf36bf1a61438ecc6 100644
--- a/content/common/gpu/stream_texture_android.cc
+++ b/content/common/gpu/stream_texture_android.cc
@@ -202,6 +202,11 @@ void StreamTexture::ReleaseTexImage(unsigned target) {
   NOTREACHED();
 }
 
+bool StreamTexture::CopyTexImage(unsigned target) {
+  NOTREACHED();

[no sievers, 2014/09/05 21:06:09]

Don't we trigger this from
WebMediaPlayerAndroid::copyVideoTextureToPlatformTexture()?

[reveman, 2014/09/06 04:02:57]

Ah, maybe. I just assumed it would not based on BindTexImage never being called.
Maybe we should allow Bind/ReleaseTexImage to be called too for consistency? And
actually call them if these images are being bound to textures as other images.

+  return false;
+}
+
 bool StreamTexture::ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
                                          int z_order,
                                          gfx::OverlayTransform transform,