gpu: Thread-safe command buffer state lookup.

gpu/command_buffer/tests/gl_manager.h

Index: gpu/command_buffer/tests/gl_manager.h
diff --git a/gpu/command_buffer/tests/gl_manager.h b/gpu/command_buffer/tests/gl_manager.h
index e0ca4749bdf84bcf47fe31064a032b1d91c8db8c..7e7425c255305eff56cfed970b8a2555a8b73657 100644
--- a/gpu/command_buffer/tests/gl_manager.h
+++ b/gpu/command_buffer/tests/gl_manager.h
@@ -100,6 +100,8 @@ class GLManager : private GpuControl {
 
   void SetSurface(gl::GLSurface* surface);
 
+  void PerformIdleWork();
+
   void set_use_iosurface_memory_buffers(bool use_iosurface_memory_buffers) {
     use_iosurface_memory_buffers_ = use_iosurface_memory_buffers;
   }
@@ -146,6 +148,7 @@ class GLManager : private GpuControl {
   bool IsFenceSyncRelease(uint64_t release) override;
   bool IsFenceSyncFlushed(uint64_t release) override;
   bool IsFenceSyncFlushReceived(uint64_t release) override;
+  bool IsFenceSyncReleased(uint64_t release) override;
   void SignalSyncToken(const gpu::SyncToken& sync_token,
                        const base::Closure& callback) override;
   bool CanWaitUnverifiedSyncToken(const gpu::SyncToken* sync_token) override;