cc: make resource keep video buffer format for hardware overlay.

cc/quads/stream_video_draw_quad.cc

Index: cc/quads/stream_video_draw_quad.cc
diff --git a/cc/quads/stream_video_draw_quad.cc b/cc/quads/stream_video_draw_quad.cc
index 7760168a02c1bec9f62f2b91f9c482bf9731ceb6..a72e26833731c69776ec9a2c4bfdce88657bbb7a 100644
--- a/cc/quads/stream_video_draw_quad.cc
+++ b/cc/quads/stream_video_draw_quad.cc
@@ -20,6 +20,7 @@ void StreamVideoDrawQuad::SetNew(const SharedQuadState* shared_quad_state,
                                  const gfx::Rect& visible_rect,
                                  unsigned resource_id,
                                  gfx::Size resource_size_in_pixels,
+                                 gfx::BufferFormat format,
                                  const gfx::Transform& matrix) {
   bool needs_blending = false;
   DrawQuad::SetAll(shared_quad_state, DrawQuad::STREAM_VIDEO_CONTENT, rect,
@@ -27,6 +28,7 @@ void StreamVideoDrawQuad::SetNew(const SharedQuadState* shared_quad_state,
   resources.ids[kResourceIdIndex] = resource_id;
   overlay_resources.size_in_pixels[kResourceIdIndex] = resource_size_in_pixels;
   resources.count = 1;
+  this->format = format;
   this->matrix = matrix;
 }
 
@@ -37,12 +39,14 @@ void StreamVideoDrawQuad::SetAll(const SharedQuadState* shared_quad_state,
                                  bool needs_blending,
                                  unsigned resource_id,
                                  gfx::Size resource_size_in_pixels,
+                                 gfx::BufferFormat format,
                                  const gfx::Transform& matrix) {
   DrawQuad::SetAll(shared_quad_state, DrawQuad::STREAM_VIDEO_CONTENT, rect,
                    opaque_rect, visible_rect, needs_blending);
   resources.ids[kResourceIdIndex] = resource_id;
   overlay_resources.size_in_pixels[kResourceIdIndex] = resource_size_in_pixels;
   resources.count = 1;
+  this->format = format;
   this->matrix = matrix;
 }
 
@@ -55,6 +59,7 @@ const StreamVideoDrawQuad* StreamVideoDrawQuad::MaterialCast(
 void StreamVideoDrawQuad::ExtendValue(
     base::trace_event::TracedValue* value) const {
   value->SetInteger("resource_id", resources.ids[kResourceIdIndex]);
+  value->SetInteger("format", static_cast<int>(format));
   MathUtil::AddToTracedValue("matrix", matrix, value);
 }