Add InProcessContextProvider and update InProcessCommandBuffer

cc/surfaces/deferred_gpu_command_service.h

+// 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.
+
+#ifndef CC_SURFACES_DEFERRED_GPU_COMMAND_SERVICE_H_
+#define CC_SURFACES_DEFERRED_GPU_COMMAND_SERVICE_H_
+
+#include "gpu/command_buffer/service/mailbox_manager.h"
+#include "gpu/ipc/in_process_command_buffer.h"
+#include "ui/gl/gl_share_group.h"
+
+namespace cc {
+
+class DeferredGpuCommandService

[piman, 2016/11/15 21:57:32]

nit: names... nothing "deferred" about this really. I wonder if we could merge
with GpuInProcessThread, because it does pretty much the same thing, *except*
GpuInProcessThread also owns the thread - but this could simply be an extra
option.

[Fady Samuel, 2016/11/16 00:33:35]

Done.

+    : public gpu::InProcessCommandBuffer::Service,
+      public base::RefCountedThreadSafe<DeferredGpuCommandService> {
+ public:
+  DeferredGpuCommandService(gpu::SyncPointManager* sync_point_manager,
+                            gpu::gles2::MailboxManager* mailbox_manager,
+                            scoped_refptr<gl::GLShareGroup> share_group);
+
+  // gpu::InProcessCommandBuffer::Service implementation.
+  void ScheduleTask(const base::Closure& task) override;
+  void ScheduleDelayedWork(const base::Closure& task) override;
+  bool UseVirtualizedGLContexts() override;
+  scoped_refptr<gpu::gles2::ShaderTranslatorCache> shader_translator_cache()
+      override;
+  scoped_refptr<gpu::gles2::FramebufferCompletenessCache>
+  framebuffer_completeness_cache() override;
+  gpu::SyncPointManager* sync_point_manager() override;
+  void AddRef() const override;
+  void Release() const override;
+  const scoped_refptr<gl::GLShareGroup>& GetShareGroup() const override;
+  bool BlockThreadOnWaitSyncToken() const override;
+
+ private:
+  friend class base::RefCountedThreadSafe<DeferredGpuCommandService>;
+
+  ~DeferredGpuCommandService() override;
+
+  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
+
+  base::Lock tasks_lock_;
+  std::queue<base::Closure> tasks_;

[piman, 2016/11/15 21:57:32]

nit: those aren't used.

[Fady Samuel, 2016/11/16 00:33:35]

Done.

+
+  gpu::SyncPointManager* sync_point_manager_;
+  scoped_refptr<gpu::gles2::ShaderTranslatorCache> shader_translator_cache_;
+  scoped_refptr<gpu::gles2::FramebufferCompletenessCache>
+      framebuffer_completeness_cache_;
+  scoped_refptr<gl::GLShareGroup> share_group_;
+
+  DISALLOW_COPY_AND_ASSIGN(DeferredGpuCommandService);
+};
+
+}  // namespace cc
+
+#endif  // CC_SURFACES_DEFERRED_GPU_COMMAND_SERVICE_H_