gpu: Add GpuFence framework.

gpu/ipc/in_process_command_buffer.cc

 // Copyright 2013 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.
 
 #include "gpu/ipc/in_process_command_buffer.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <queue>
@@ skipping 956 matching lines @@
   QueueTask(base::Bind(&InProcessCommandBuffer::SignalSyncTokenOnGpuThread,
                        base::Unretained(this), sync_token,
                        WrapCallback(callback)));
 }
 
 bool InProcessCommandBuffer::CanWaitUnverifiedSyncToken(
     const SyncToken* sync_token) {
   return sync_token->namespace_id() == GetNamespaceID();
 }
 
+int32_t InProcessCommandBuffer::CreateFence(ClientFence fence) {
+  NOTIMPLEMENTED();
+  return -1;
+}
+
+void InProcessCommandBuffer::DestroyFence(int32_t id) {
+  NOTIMPLEMENTED();
+}
+
 gpu::error::Error InProcessCommandBuffer::GetLastError() {
   CheckSequencedThread();
   return last_state_.error;
 }
 
 namespace {
 
 void PostCallback(
     const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
     const base::Closure& callback) {
@@ skipping 73 matching lines @@
     framebuffer_completeness_cache_ =
         new gpu::gles2::FramebufferCompletenessCache;
   return framebuffer_completeness_cache_;
 }
 
 SyncPointManager* GpuInProcessThread::sync_point_manager() {
   return sync_point_manager_;
 }
 
 }  // namespace gpu