Scale menu position back to viewport in pepper plugin

content/renderer/pepper/pepper_plugin_instance_impl.cc

Index: content/renderer/pepper/pepper_plugin_instance_impl.cc
diff --git a/content/renderer/pepper/pepper_plugin_instance_impl.cc b/content/renderer/pepper/pepper_plugin_instance_impl.cc
index cfc04b25a68cf781d264bd2dd9d6527e13b41477..8810686bb43f9abedeb73a2a74f6005af2c81141 100644
--- a/content/renderer/pepper/pepper_plugin_instance_impl.cc
+++ b/content/renderer/pepper/pepper_plugin_instance_impl.cc
@@ -1641,6 +1641,9 @@ void PepperPluginInstanceImpl::SendDidChangeView() {
     bound_graphics_2d_platform_->set_viewport_to_dip_scale(
         viewport_to_dip_scale_);
 
+  module_->renderer_ppapi_host()->set_viewport_to_dip_scale(
+      viewport_to_dip_scale_);
+
   // During the first view update, initialize the throttler.
   if (!sent_initial_did_change_view_) {
     if (is_flash_plugin_ && RenderThread::Get()) {