Implement TextureImageTransportSurface using texture mailbox

content/browser/renderer_host/image_transport_factory.h

Index: content/browser/renderer_host/image_transport_factory.h
diff --git a/content/browser/renderer_host/image_transport_factory.h b/content/browser/renderer_host/image_transport_factory.h
index 415f9e528236fc62a38708df3d1a6b9e7290b962..f081e206e35e9d75cdeb12b3d4b0f7bd476dc47a 100644
--- a/content/browser/renderer_host/image_transport_factory.h
+++ b/content/browser/renderer_host/image_transport_factory.h
@@ -5,6 +5,8 @@
 #ifndef CONTENT_BROWSER_RENDERER_HOST_IMAGE_TRANSPORT_FACTORY_H_
 #define CONTENT_BROWSER_RENDERER_HOST_IMAGE_TRANSPORT_FACTORY_H_
 
+#include <string>
+
 #include "base/memory/ref_counted.h"
 #include "ui/gfx/native_widget_types.h"
 
@@ -73,7 +75,7 @@ class ImageTransportFactory {
   virtual scoped_refptr<ui::Texture> CreateTransportClient(
       const gfx::Size& size,
       float device_scale_factor,
-      uint64 transport_handle) = 0;
+      const std::string& mailbox_name) = 0;
 
   // Variant of CreateTransportClient() that deletes the texture on the GPU when
   // the returned value is deleted.