Make Mac swap code like other platforms

gpu/ipc/service/gpu_channel_manager.cc

 // Copyright (c) 2012 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/service/gpu_channel_manager.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 97 matching lines @@
     framebuffer_completeness_cache_ =
         new gles2::FramebufferCompletenessCache;
   return framebuffer_completeness_cache_.get();
 }
 
 void GpuChannelManager::RemoveChannel(int client_id) {
   delegate_->DidDestroyChannel(client_id);
   gpu_channels_.erase(client_id);
 }
 
-#if defined(OS_MACOSX)
-void GpuChannelManager::AddBufferPresentedCallback(
-    gpu::SurfaceHandle surface_handle,
-    const BufferPresentedCallback& callback) {
-  DCHECK(buffer_presented_callback_map_.find(surface_handle) ==
-         buffer_presented_callback_map_.end());
-  buffer_presented_callback_map_[surface_handle] = callback;
-}
-
-void GpuChannelManager::RemoveBufferPresentedCallback(
-    gpu::SurfaceHandle surface_handle) {
-  auto it = buffer_presented_callback_map_.find(surface_handle);
-  DCHECK(it != buffer_presented_callback_map_.end());
-  buffer_presented_callback_map_.erase(it);
-}
-
-void GpuChannelManager::BufferPresented(gpu::SurfaceHandle surface_handle,
-                                        const base::TimeTicks& vsync_timebase,
-                                        const base::TimeDelta& vsync_interval) {
-  auto it = buffer_presented_callback_map_.find(surface_handle);
-  if (it != buffer_presented_callback_map_.end())
-    it->second.Run(surface_handle, vsync_timebase, vsync_interval);
-}
-#endif
-
 GpuChannel* GpuChannelManager::LookupChannel(int32_t client_id) const {
   const auto& it = gpu_channels_.find(client_id);
   return it != gpu_channels_.end() ? it->second : nullptr;
 }
 
 std::unique_ptr<GpuChannel> GpuChannelManager::CreateGpuChannel(
     int client_id,
     uint64_t client_tracing_id,
     bool preempts,
     bool allow_view_command_buffers,
@@ skipping 152 matching lines @@
     }
   }
   if (!stub || !stub->decoder()->MakeCurrent())
     return;
   glFinish();
   DidAccessGpu();
 }
 #endif
 
 }  // namespace gpu