Signal input flush when all flings have terminated

content/browser/renderer_host/render_widget_host_unittest.cc

Index: content/browser/renderer_host/render_widget_host_unittest.cc
diff --git a/content/browser/renderer_host/render_widget_host_unittest.cc b/content/browser/renderer_host/render_widget_host_unittest.cc
index cb7d64efc8f435a31d615d8ad0c1e264f282f432..46acbd1dbae6d48581ac9393358222dd4d686b81 100644
--- a/content/browser/renderer_host/render_widget_host_unittest.cc
+++ b/content/browser/renderer_host/render_widget_host_unittest.cc
@@ -70,7 +70,6 @@ class MockInputRouter : public InputRouter {
   ~MockInputRouter() override {}
 
   // InputRouter
-  void Flush() override { flush_called_ = true; }
   bool SendInput(scoped_ptr<IPC::Message> message) override {
     send_event_called_ = true;
     return true;
@@ -101,6 +100,7 @@ class MockInputRouter : public InputRouter {
     return NULL;
   }
   void OnViewUpdated(int view_flags) override {}
+  void RequestNotificationWhenFlushed() override {}
   bool HasPendingEvents() const override { return false; }
 
   // IPC::Listener
@@ -109,7 +109,6 @@ class MockInputRouter : public InputRouter {
     return false;
   }
 
-  bool flush_called_;
   bool send_event_called_;
   bool sent_mouse_event_;
   bool sent_wheel_event_;