mustash: gpu: implement SignalQuery in CommandBufferLocal

components/mus/gles2/command_buffer_driver.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 "components/mus/gles2/command_buffer_driver.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/memory/shared_memory.h"
 #include "base/thread_task_runner_handle.h"
 #include "build/build_config.h"
 #include "components/mus/gles2/gpu_memory_tracker.h"
 #include "components/mus/gles2/gpu_state.h"
 #include "components/mus/gles2/mojo_buffer_backing.h"
 #include "gpu/command_buffer/service/command_buffer_service.h"
 #include "gpu/command_buffer/service/context_group.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 #include "gpu/command_buffer/service/gpu_scheduler.h"
 #include "gpu/command_buffer/service/image_factory.h"
 #include "gpu/command_buffer/service/image_manager.h"
 #include "gpu/command_buffer/service/mailbox_manager.h"
+#include "gpu/command_buffer/service/query_manager.h"
 #include "gpu/command_buffer/service/sync_point_manager.h"
 #include "gpu/command_buffer/service/transfer_buffer_manager.h"
 #include "gpu/command_buffer/service/valuebuffer_manager.h"
 #include "mojo/converters/geometry/geometry_type_converters.h"
 #include "mojo/platform_handle/platform_handle_functions.h"
 #include "ui/gfx/buffer_format_util.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/vsync_provider.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_image_shared_memory.h"
@@ skipping 458 matching lines @@
   gpu::CommandBuffer::State state = GetLastState();
   OnContextLost(state.context_lost_reason);
 }
 
 void CommandBufferDriver::OnContextLost(uint32_t reason) {
   DCHECK(CalledOnValidThread());
   if (client_)
     client_->DidLoseContext(reason);
 }
 
+void CommandBufferDriver::SignalQuery(uint32_t query_id,
+                                      const base::Closure& callback) {
+  DCHECK(CalledOnValidThread());
+
+  gpu::gles2::QueryManager* query_manager = decoder_->GetQueryManager();
+  gpu::gles2::QueryManager::Query* query = query_manager->GetQuery(query_id);
+  if (query)
+    query->AddCallback(callback);
+  else
+    callback.Run();
+}
+
 }  // namespace mus