WIP GPU scheduler + delayed activation / tile draw

gpu/ipc/service/gpu_channel_manager.h

 // 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.
 
 #ifndef GPU_IPC_SERVICE_GPU_CHANNEL_MANAGER_H_
 #define GPU_IPC_SERVICE_GPU_CHANNEL_MANAGER_H_
 
 #include <stdint.h>
 
 #include <deque>
@@ skipping 38 matching lines @@
 }
 }
 
 namespace IPC {
 struct ChannelHandle;
 }
 
 namespace gpu {
 class GpuChannel;
 class GpuChannelManagerDelegate;
+class GpuScheduler;
 class GpuMemoryBufferFactory;
 class GpuWatchdogThread;
 
 // A GpuChannelManager is a thread responsible for issuing rendering commands
 // managing the lifetimes of GPU channels and forwarding IPC requests from the
 // browser process to them based on the corresponding renderer ID.
 class GPU_EXPORT GpuChannelManager {
  public:
   GpuChannelManager(const GpuPreferences& gpu_preferences,
                     GpuChannelManagerDelegate* delegate,
@@ skipping 104 matching lines @@
   const GpuPreferences gpu_preferences_;
   GpuDriverBugWorkarounds gpu_driver_bug_workarounds_;
 
   GpuChannelManagerDelegate* const delegate_;
 
   GpuWatchdogThread* watchdog_;
 
   base::WaitableEvent* shutdown_event_;
 
   scoped_refptr<gl::GLShareGroup> share_group_;
+
+  scoped_refptr<PreemptionFlag> preemption_flag_;
+  std::unique_ptr<GpuScheduler> scheduler_;
+
   scoped_refptr<gles2::MailboxManager> mailbox_manager_;
-  scoped_refptr<PreemptionFlag> preemption_flag_;
   GpuMemoryManager gpu_memory_manager_;
   // SyncPointManager guaranteed to outlive running MessageLoop.
   SyncPointManager* sync_point_manager_;
   std::unique_ptr<SyncPointClient> sync_point_client_waiter_;
   std::unique_ptr<gles2::ProgramCache> program_cache_;
   scoped_refptr<gles2::ShaderTranslatorCache> shader_translator_cache_;
   scoped_refptr<gles2::FramebufferCompletenessCache>
       framebuffer_completeness_cache_;
   scoped_refptr<gl::GLSurface> default_offscreen_surface_;
   GpuMemoryBufferFactory* const gpu_memory_buffer_factory_;
@@ skipping 11 matching lines @@
   // that any WeakPtrs to Controller are invalidated before its members
   // variable's destructors are executed, rendering them invalid.
   base::WeakPtrFactory<GpuChannelManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuChannelManager);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_IPC_SERVICE_GPU_CHANNEL_MANAGER_H_