gpu: Allow waiting on sync tokens without sync token client.

gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc b/gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc
index 178f3692bb6e6598e7801f7c6d41de91542a7d16..86f13e5f7f1415ae334d057bc187bf23e2c3abd1 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc
@@ -425,9 +425,9 @@ void GLES2DecoderPassthroughImpl::SetFenceSyncReleaseCallback(
   fence_sync_release_callback_ = callback;
 }
 
-void GLES2DecoderPassthroughImpl::SetWaitFenceSyncCallback(
-    const WaitFenceSyncCallback& callback) {
-  wait_fence_sync_callback_ = callback;
+void GLES2DecoderPassthroughImpl::SetWaitSyncTokenCallback(
+    const WaitSyncTokenCallback& callback) {
+  wait_sync_token_callback_ = callback;
 }
 
 void GLES2DecoderPassthroughImpl::SetDescheduleUntilFinishedCallback(