Change mojo geometry structs from using type converters to StructTraits.

media/mojo/services/mojo_renderer_service.cc

Index: media/mojo/services/mojo_renderer_service.cc
diff --git a/media/mojo/services/mojo_renderer_service.cc b/media/mojo/services/mojo_renderer_service.cc
index f0eaf988929483d0e46b47dd7982f4efffd284e1..9c6f2adf0d11eb581920b6ee7244d8dadd8f09fa 100644
--- a/media/mojo/services/mojo_renderer_service.cc
+++ b/media/mojo/services/mojo_renderer_service.cc
@@ -11,7 +11,6 @@
 #include "media/base/renderer.h"
 #include "media/mojo/services/demuxer_stream_provider_shim.h"
 #include "media/mojo/services/mojo_cdm_service_context.h"
-#include "ui/gfx/geometry/mojo/geometry_type_converters.h"
 
 namespace media {
 
@@ -131,7 +130,7 @@ void MojoRendererService::OnWaitingForDecryptionKey() {
 
 void MojoRendererService::OnVideoNaturalSizeChange(const gfx::Size& size) {
   DVLOG(2) << __FUNCTION__ << "(" << size.ToString() << ")";
-  client_->OnVideoNaturalSizeChange(mojo::Size::From(size));
+  client_->OnVideoNaturalSizeChange(size);
 }
 
 void MojoRendererService::OnVideoOpacityChange(bool opaque) {