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

cc/ipc/struct_traits_unittest.cc

Index: cc/ipc/struct_traits_unittest.cc
diff --git a/cc/ipc/struct_traits_unittest.cc b/cc/ipc/struct_traits_unittest.cc
index 5d22e492c579dd577f6d3141de592f2a9663a9d4..d44a6f860ecf415abb1f819402aa6534affc3754 100644
--- a/cc/ipc/struct_traits_unittest.cc
+++ b/cc/ipc/struct_traits_unittest.cc
@@ -588,13 +588,14 @@ TEST_F(StructTraitsTest, QuadListBasic) {
   const gfx::Rect rect6(321, 765, 11109, 151413);
   const ResourceId resource_id6(1234);
   const gfx::Size resource_size_in_pixels(1234, 5678);
+  gfx::BufferFormat format = gfx::BufferFormat::YVU_420;
   const gfx::Transform matrix(16.1f, 15.3f, 14.3f, 13.7f, 12.2f, 11.4f, 10.4f,
                               9.8f, 8.1f, 7.3f, 6.3f, 5.7f, 4.8f, 3.4f, 2.4f,
                               1.2f);
   StreamVideoDrawQuad* stream_video_draw_quad =
       render_pass->CreateAndAppendDrawQuad<StreamVideoDrawQuad>();
   stream_video_draw_quad->SetNew(sqs, rect6, rect6, rect6, resource_id6,
-                                 resource_size_in_pixels, matrix);
+                                 resource_size_in_pixels, format, matrix);
 
   mojom::TraitsTestServicePtr proxy = GetTraitsTestProxy();
   std::unique_ptr<RenderPass> output;
@@ -661,6 +662,7 @@ TEST_F(StructTraitsTest, QuadListBasic) {
   EXPECT_EQ(resource_id6, out_stream_video_draw_quad->resource_id());
   EXPECT_EQ(resource_size_in_pixels,
             out_stream_video_draw_quad->resource_size_in_pixels());
+  EXPECT_EQ(format, out_stream_video_draw_quad->format);
   EXPECT_EQ(matrix, out_stream_video_draw_quad->matrix);
 }