Add future sync point methods to ContextSupport.

cc/test/test_context_support.cc

Index: cc/test/test_context_support.cc
diff --git a/cc/test/test_context_support.cc b/cc/test/test_context_support.cc
index d5bfcd37df6108f66ed8afae6d43df60d7b74c7c..a2bedc0835219e3f6193d8bda6087e5b83d11a3a 100644
--- a/cc/test/test_context_support.cc
+++ b/cc/test/test_context_support.cc
@@ -65,6 +65,15 @@ void TestContextSupport::Swap() {
                             weak_ptr_factory_.GetWeakPtr()));
 }
 
+uint32 TestContextSupport::InsertFutureSyncPointCHROMIUM() {
+  NOTIMPLEMENTED();
+  return 0;
+}
+
+void TestContextSupport::RetireSyncPointCHROMIUM(uint32 sync_point) {
+  NOTIMPLEMENTED();
+}
+
 void TestContextSupport::PartialSwapBuffers(const gfx::Rect& sub_buffer) {
   last_swap_type_ = PARTIAL_SWAP;
   last_partial_swap_rect_ = sub_buffer;