Revert "Update mojo sdk to rev 8d45c89c30b230843c5bd6dd0693a555750946c0"

third_party/mojo_services/src/gpu/public/interfaces/command_buffer.mojom

 // 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.
 
 module mojo;
 
 import "gpu/public/interfaces/gpu_capabilities.mojom";
 
 struct CommandBufferState {
   int32 num_entries;
   int32 get_offset;
   int32 put_offset;
   int32 token;
   int32 error;  // TODO(piman): enum
   int32 context_lost_reason;  // TODO(piman): enum
   uint32 generation;
 };
 
 interface CommandBufferSyncClient {
   DidInitialize(bool success, GpuCapabilities capabilities);
   DidMakeProgress(CommandBufferState state);
 };
 
 interface CommandBufferSyncPointClient {
   DidInsertSyncPoint(uint32 sync_point);
 };
 
-interface CommandBufferLostContextObserver {
-  DidLoseContext(int32 context_lost_reason);
-};
-
+[Client=CommandBufferClient]
 interface CommandBuffer {
-  // Initialize attempts to initialize the command buffer. Success or failure
-  // will be communicated via the CommandBufferSyncClient DidInitialize() call.
-  // If the context is lost after creation the LostContext method on the
-  // CommandBufferLostContextObserver's will be called then this pipe will be
-  // closed.
   Initialize(CommandBufferSyncClient sync_client,
              CommandBufferSyncPointClient sync_point_client,
-             CommandBufferLostContextObserver lost_observer,
              handle<shared_buffer> shared_state);
   SetGetBuffer(int32 buffer);
   Flush(int32 put_offset);
   MakeProgress(int32 last_get_offset);
   RegisterTransferBuffer(
       int32 id, handle<shared_buffer> transfer_buffer, uint32 size);
   DestroyTransferBuffer(int32 id);
 
   // InsertSyncPoint returns the sync point returned via DidInsertSyncPoint.
   // If |retire| is true, the sync point is retired on insertion. Otherwise,
   // explicitly call RetireSyncPoint to retire it.
   InsertSyncPoint(bool retire);
   RetireSyncPoint(uint32 sync_point);
   Echo() => ();
+
+  // TODO(piman): sync points
 };
+
+interface CommandBufferClient {
+  DidDestroy();
+  LostContext(int32 lost_reason);  // TODO(piman): enum
+};