Implement TransferableResource StructTraits

components/mus/public/interfaces/compositor_frame.mojom

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 module mus.mojom;
 
 import "cc/ipc/returned_resource.mojom";
+import "cc/ipc/transferable_resource.mojom";
 import "components/mus/public/interfaces/quads.mojom";
 import "ui/gfx/geometry/mojo/geometry.mojom";
 import "gpu/ipc/common/mailbox_holder.mojom";
 import "gpu/ipc/common/sync_token.mojom";
 
-enum ResourceFormat {
-  RGBA_8888,
-  RGBA_4444,
-  BGRA_8888,
-  ALPHA_8,
-  LUMINANCE_8,
-  RGB_565,
-  ETC1,
-};
-
-// A TransferableResource is a graphics resource such as a texture or a bitmap
-// in shared memory (software mode) that is shared between the window server and
-// a client. This data structure is used to manage reuse of
-// the memory once it is no longer needed by the window server and GPU service.
-struct TransferableResource {
-  // |id| is an integer that uniquely identifies this resource  in the client so
-  // that the window server can return this resource back to the client.
-  uint32 id;
-  ResourceFormat format;
-  uint32 filter;
-  mojo.Size size;
-  gpu.mojom.MailboxHolder mailbox_holder;
-  bool read_lock_fences_enabled;
-  bool is_software;
-  bool is_overlay_candidate;
-};
-
 // See cc/output/compositor_frame_metadata.h.
 struct CompositorFrameMetadata {
   float device_scale_factor;
 };
 
 // See src/cc/output/compositor_frame.h.
 struct CompositorFrame {
   CompositorFrameMetadata metadata;
-  array<TransferableResource> resources;
+  array<cc.mojom.TransferableResource> resources;
   array<Pass> passes;
 };
 
 // A Surface is an interface for receiving CompositorFrame structs. This is a
 // separate interface to allow CompositorFrames to be delivered from
 // supplementary (not main) threads of a mojo app.
 interface Surface {
   // After the submitted frame is drawn for the first time, the receiver will
   // respond to the SubmitFrame message. Clients should use this acknowledgement
   // to ratelimit frame submissions.
   SubmitCompositorFrame(CompositorFrame frame) => ();
 };
 
 interface SurfaceClient {
   ReturnResources(array<cc.mojom.ReturnedResource> resources);
 };