Add video-rendering to mojo media pipeline.

media/renderers/video_overlay_factory.h

Index: media/renderers/video_overlay_factory.h
diff --git a/chromecast/renderer/media/hole_frame_factory.h b/media/renderers/video_overlay_factory.h
similarity index 57%
rename from chromecast/renderer/media/hole_frame_factory.h
rename to media/renderers/video_overlay_factory.h
index a1eee57da8b30539c0569b244cf816208eabb330..1e338ad5c7aff2b39fdd9fc2a895b03599b89578 100644
--- a/chromecast/renderer/media/hole_frame_factory.h
+++ b/media/renderers/video_overlay_factory.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROMECAST_RENDERER_MEDIA_HOLE_FRAME_FACTORY_H_
-#define CHROMECAST_RENDERER_MEDIA_HOLE_FRAME_FACTORY_H_
+#ifndef MEDIA_RENDERERS_VIDEO_OVERLAY_FACTORY_H_
+#define MEDIA_RENDERERS_VIDEO_OVERLAY_FACTORY_H_
 
 #include <GLES2/gl2.h>
 
@@ -11,29 +11,27 @@
 #include "base/memory/ref_counted.h"
 #include "gpu/command_buffer/common/mailbox.h"
 #include "gpu/command_buffer/common/sync_token.h"
+#include "media/base/media_export.h"
 
 namespace gfx {
 class Size;
-}
+}  // namespace gfx
 
 namespace media {
+
 class GpuVideoAcceleratorFactories;
 class VideoFrame;
-}
-
-namespace chromecast {
-namespace media {
 
-// Creates VideoFrames for CMA - native textures that get turned into
+// Creates video overlay frames - native textures that get turned into
 // transparent holes in the browser compositor using overlay system.
-// All calls (including ctor/dtor) must be on media thread.
-class HoleFrameFactory {
+// This class must be used on GpuVideoAcceleratorFactories::GetTaskRunner().

[halliwell, 2016/05/19 15:47:50]

This comment seems a little incomplete now this class is in media/.  Should
probably clarify that the frames produced are dummy frames for the sole purpose
of carrying the overlay flag through to the compositor, to be replaced there. 
This assumes that the real video frame is rendered externally.

e.g. not to be confused with the overlay frames produced by GpuVideoDecoder.

+class MEDIA_EXPORT VideoOverlayFactory {
  public:
-  explicit HoleFrameFactory(
+  explicit VideoOverlayFactory(
       ::media::GpuVideoAcceleratorFactories* gpu_factories);
-  ~HoleFrameFactory();
+  ~VideoOverlayFactory();
 
-  scoped_refptr<::media::VideoFrame> CreateHoleFrame(const gfx::Size& size);
+  scoped_refptr<::media::VideoFrame> CreateFrame(const gfx::Size& size);
 
  private:
   ::media::GpuVideoAcceleratorFactories* gpu_factories_;
@@ -42,10 +40,9 @@ class HoleFrameFactory {
   GLuint texture_;
   GLuint image_id_;
 
-  DISALLOW_COPY_AND_ASSIGN(HoleFrameFactory);
+  DISALLOW_COPY_AND_ASSIGN(VideoOverlayFactory);
 };
 
 }  // namespace media
-}  // namespace chromecast
 
-#endif  // CHROMECAST_RENDERER_MEDIA_HOLE_FRAME_FACTORY_H_
+#endif  // MEDIA_RENDERERS_VIDEO_OVERLAY_FACTORY_H_