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

cc/ipc/quads_struct_traits.h

Index: cc/ipc/quads_struct_traits.h
diff --git a/cc/ipc/quads_struct_traits.h b/cc/ipc/quads_struct_traits.h
index 2ed6f20fa91502e3a9c0fd2817aae3ff5bcd2187..0d111dc8d23a1a9688eea66fc142320e6276a23d 100644
--- a/cc/ipc/quads_struct_traits.h
+++ b/cc/ipc/quads_struct_traits.h
@@ -21,6 +21,7 @@
 #include "cc/quads/tile_draw_quad.h"
 #include "cc/quads/yuv_video_draw_quad.h"
 #include "ui/gfx/geometry/mojo/geometry_struct_traits.h"
+#include "ui/gfx/mojo/buffer_types_traits.h"
 
 namespace mojo {
 
@@ -208,6 +209,12 @@ struct StructTraits<cc::mojom::StreamVideoQuadStateDataView, cc::DrawQuad> {
         .size_in_pixels[cc::StreamVideoDrawQuad::kResourceIdIndex];
   }
 
+  static const gfx::BufferFormat& format(const cc::DrawQuad& input) {
+    const cc::StreamVideoDrawQuad* quad =
+        cc::StreamVideoDrawQuad::MaterialCast(&input);
+    return quad->format;
+  }
+
   static const gfx::Transform& matrix(const cc::DrawQuad& input) {
     const cc::StreamVideoDrawQuad* quad =
         cc::StreamVideoDrawQuad::MaterialCast(&input);