Verify resource provider sync tokens before sending to parent.

cc/test/test_gles2_interface.h

Index: cc/test/test_gles2_interface.h
diff --git a/cc/test/test_gles2_interface.h b/cc/test/test_gles2_interface.h
index 09148106adb96a12177b0d998edecb4e35c8a054..fe4f16fec83070070510aa74485b548b6158ead0 100644
--- a/cc/test/test_gles2_interface.h
+++ b/cc/test/test_gles2_interface.h
@@ -138,7 +138,11 @@ class TestGLES2Interface : public gpu::gles2::GLES2InterfaceStub {
                   GLenum usage) override;
 
   GLuint InsertSyncPointCHROMIUM() override;
-
+  GLuint64 InsertFenceSyncCHROMIUM() override;
+  void GenSyncTokenCHROMIUM(GLuint64 fence_sync, GLbyte* sync_token) override;
+  void GenUnverifiedSyncTokenCHROMIUM(GLuint64 fence_sync,
+                                      GLbyte* sync_token) override;
+  void VerifySyncTokensCHROMIUM(GLbyte** sync_tokens, GLsizei count) override;
   void WaitSyncTokenCHROMIUM(const GLbyte* sync_token) override;
 
   void BeginQueryEXT(GLenum target, GLuint id) override;