Mojom interface for Surfaces service

mojo/services/public/interfaces/surfaces/surfaces.mojom

Index: mojo/services/public/interfaces/surfaces/surfaces.mojom
diff --git a/mojo/services/public/interfaces/surfaces/surfaces.mojom b/mojo/services/public/interfaces/surfaces/surfaces.mojom
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+// Copyright 2014 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.
+
+import "../geometry/geometry.mojom"
+import "quads.mojom"
+import "surface_id.mojom"
+
+module mojo.surfaces {
+
+enum ResourceFormat {
+  RGBA_8888,
+  RGBA_4444,
+  BGRA_8888,
+  LUMINANCE_8,
+  RGB_565,
+  ETC1,
+};
+
+struct Mailbox {
+  // Should have exactly 64 entries.
+  int8[] name;
+};
+
+struct MailboxHolder {
+  Mailbox mailbox;
+  uint32 texture_target;
+  uint32 sync_point;
+};
+
+struct TransferableResource {
+  uint32 id;
+  ResourceFormat format;
+  uint32 filter;
+  mojo.Size size;
+  MailboxHolder mailbox_holder;
+  bool is_repeated;
+  bool is_software;
+};
+
+struct Frame {
+  TransferableResource[] resources;
+  Pass[] passes;
+};
+
+interface SurfaceClient {
+  ReturnResources(TransferableResource[] resources);
+};
+
+[client=SurfaceClient]
+interface Surface {
+  CreateSurface(SurfaceId id, mojo.Size size);
+  SubmitFrame(SurfaceId id, Frame frame);
+  DestroySurface(SurfaceId id);
+};
+
+}