services/ui: Add mojom API for creating/destroying gpu memory buffer.

services/ui/gpu/interfaces/gpu_service_internal.mojom

Index: services/ui/gpu/interfaces/gpu_service_internal.mojom
diff --git a/services/ui/gpu/interfaces/gpu_service_internal.mojom b/services/ui/gpu/interfaces/gpu_service_internal.mojom
index cafde2a42c89650abb759944299bcf2d3f6c612a..18474844f0bb5a4b94b9e77e8800d7fb3541dee8 100644
--- a/services/ui/gpu/interfaces/gpu_service_internal.mojom
+++ b/services/ui/gpu/interfaces/gpu_service_internal.mojom
@@ -5,6 +5,8 @@
 module ui.mojom;
 
 import "gpu/ipc/common/gpu_info.mojom";
+import "gpu/ipc/common/surface_handle.mojom";
+import "gpu/ipc/common/sync_token.mojom";
 import "ui/gfx/geometry/mojo/geometry.mojom";
 import "ui/gfx/mojo/buffer_types.mojom";
 
@@ -17,4 +19,17 @@ interface GpuServiceInternal {
                       uint64 client_tracing_id,
                       bool is_gpu_host)
       => (handle<message_pipe> channel_handle);
+
+  [Sync]
+  CreateGpuMemoryBuffer(gfx.mojom.GpuMemoryBufferId id,
+                        gfx.mojom.Size size,
+                        gfx.mojom.BufferFormat format,
+                        gfx.mojom.BufferUsage usage,
+                        int32 client_id,
+                        gpu.mojom.SurfaceHandle surface_handle)
+      => (gfx.mojom.GpuMemoryBufferHandle buffer_handle);
+
+  DestroyGpuMemoryBuffer(gfx.mojom.GpuMemoryBufferId id,
+                         int32 client_id,
+                         gpu.mojom.SyncToken sync_token);
 };