gpu: Thread-safe command buffer state lookup.

gpu/command_buffer/tests/gl_manager.cc

Index: gpu/command_buffer/tests/gl_manager.cc
diff --git a/gpu/command_buffer/tests/gl_manager.cc b/gpu/command_buffer/tests/gl_manager.cc
index a9e0a305de7aa4ccf9c7c9757bb8041a53bf5d32..49db8c83d4a9131876e9ee95bdda20c71a48e0d8 100644
--- a/gpu/command_buffer/tests/gl_manager.cc
+++ b/gpu/command_buffer/tests/gl_manager.cc
@@ -428,6 +428,7 @@ void GLManager::SetupBaseContext() {
 void GLManager::OnFenceSyncRelease(uint64_t release) {
   DCHECK(sync_point_client_);
   DCHECK(!sync_point_client_->client_state()->IsFenceSyncReleased(release));
+  command_buffer_->SetReleaseCount(release);
   sync_point_client_->ReleaseFenceSync(release);
 }
 
@@ -455,6 +456,10 @@ void GLManager::SetSurface(gl::GLSurface* surface) {
   decoder_->SetSurface(surface);
 }
 
+void GLManager::PerformIdleWork() {
+  executor_->PerformIdleWork();
+}
+
 void GLManager::Destroy() {
   if (gles2_implementation_.get()) {
     MakeCurrent();
@@ -633,6 +638,10 @@ bool GLManager::IsFenceSyncFlushReceived(uint64_t release) {
   return IsFenceSyncRelease(release);
 }
 
+bool GLManager::IsFenceSyncReleased(uint64_t release) {
+  return release <= command_buffer_->GetLastState().release_count;
+}
+
 void GLManager::SignalSyncToken(const gpu::SyncToken& sync_token,
                                 const base::Closure& callback) {
   if (sync_point_manager_) {