Mojo: add support for disallowing sync calls for a process.

components/mus/common/gpu_service.cc

 // Copyright 2016 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 "components/mus/common/gpu_service.h"
 
 #include "base/command_line.h"
 #include "base/memory/singleton.h"
-#include "base/threading/thread_restrictions.h"
 #include "components/mus/common/gpu_type_converters.h"
 #include "components/mus/common/mojo_gpu_memory_buffer_manager.h"
 #include "components/mus/common/switches.h"
 #include "components/mus/public/interfaces/gpu_service.mojom.h"
+#include "mojo/public/cpp/bindings/sync_call_restrictions.h"
 #include "mojo/public/cpp/system/platform_handle.h"
 #include "services/shell/public/cpp/connector.h"
 
 namespace mus {
 
 GpuService::GpuService()
     : main_message_loop_(base::MessageLoop::current()),
       shutdown_event_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
                       base::WaitableEvent::InitialState::NOT_SIGNALED),
       io_thread_("GPUIOThread"),
@@ skipping 28 matching lines @@
   if (gpu_channel_)
     return gpu_channel_;
 
   mus::mojom::GpuServicePtr gpu_service;
   connector->ConnectToInterface("mojo:mus", &gpu_service);
 
   int client_id = 0;
   mojom::ChannelHandlePtr channel_handle;
   mojom::GpuInfoPtr gpu_info;
   {
-    // TODO(penghuang): Remove the ScopedAllowWait when HW rendering is enabled
-    // in mus chrome.
-    base::ThreadRestrictions::ScopedAllowWait allow_wait;
+    // TODO(penghuang): Remove the ScopedAllowSyncCall when HW rendering is
+    // enabled in mus chrome.
+    mojo::SyncCallRestrictions::ScopedAllowSyncCall allow_sync_call;
     if (!gpu_service->EstablishGpuChannel(&client_id, &channel_handle,
                                           &gpu_info)) {
       DLOG(WARNING)
           << "Channel encountered error while establishing gpu channel.";
       return nullptr;
     }
   }
 
   // TODO(penghuang): Get the real gpu info from mus.
   gpu_channel_ = gpu::GpuChannelHost::Create(
@@ skipping 25 matching lines @@
   result = mojo::UnwrapSharedMemoryHandle(std::move(handle), &platform_handle,
                                           &shared_memory_size, &readonly);
   if (result != MOJO_RESULT_OK)
     return nullptr;
   DCHECK_EQ(shared_memory_size, size);
 
   return base::MakeUnique<base::SharedMemory>(platform_handle, readonly);
 }
 
 }  // namespace mus