Android: Enable vsync for synthetic gestures

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index b3aad6a1b0b219c7608b4c8b07ffc6d6ec5b7ebd..93e0ad72bd16b18e031651d3fa3ddfd6168d9ad2 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -1166,6 +1166,7 @@ void RenderWidgetHostViewAndroid::OnSetNeedsFlushInput() {
     return;
   TRACE_EVENT0("input", "RenderWidgetHostViewAndroid::OnSetNeedsFlushInput");
   flush_input_requested_ = true;
+  content_view_core_->GetWindowAndroid()->RequestVSyncUpdate();
 }
 
 void RenderWidgetHostViewAndroid::CreateBrowserAccessibilityManagerIfNeeded() {