Modified old wait sync point functions to also accept new sync tokens.

gpu/blink/webgraphicscontext3d_impl.h

Index: gpu/blink/webgraphicscontext3d_impl.h
diff --git a/gpu/blink/webgraphicscontext3d_impl.h b/gpu/blink/webgraphicscontext3d_impl.h
index e0cd53bf4f82b0b604af3062cc38491fb03a764b..097c1d4606bf4b7fcf02718a51e41441979ee59e 100644
--- a/gpu/blink/webgraphicscontext3d_impl.h
+++ b/gpu/blink/webgraphicscontext3d_impl.h
@@ -38,7 +38,8 @@ class GPU_BLINK_EXPORT WebGraphicsContext3DImpl
   uint32_t lastFlushID() override;
 
   unsigned int insertSyncPoint() override;
-  void waitSyncPoint(unsigned int sync_point) override;
+  void waitSyncPoint(unsigned int sync_point,
+                     const blink::WGC3Dbyte* sync_token) override;
 
   void loseContextCHROMIUM(blink::WGC3Denum current,
                            blink::WGC3Denum other) override;