Disable direct routing of mouse events for RenderWidgetHostViewGuest

content/browser/renderer_host/render_widget_host_view_base.cc

Index: content/browser/renderer_host/render_widget_host_view_base.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_base.cc b/content/browser/renderer_host/render_widget_host_view_base.cc
index a8e8627bbed8b87f92ddea9d39241ca46e3a50e2..1b263981d6c88b9f2b9a5f77435225a1cb8ff074 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.cc
+++ b/content/browser/renderer_host/render_widget_host_view_base.cc
@@ -453,6 +453,10 @@ gfx::Point RenderWidgetHostViewBase::TransformPointToCoordSpaceForView(
   return point;
 }
 
+bool RenderWidgetHostViewBase::IsRenderWidgetHostViewGuest() {
+  return false;
+}
+
 void RenderWidgetHostViewBase::TextInputStateChanged(
     const TextInputState& text_input_state) {
 // TODO(ekaramad): Use TextInputManager code paths for IME on other platforms.