Fix for out-of-sync scale factor issue

content/browser/renderer_host/render_widget_host_impl.cc

Index: content/browser/renderer_host/render_widget_host_impl.cc
diff --git a/content/browser/renderer_host/render_widget_host_impl.cc b/content/browser/renderer_host/render_widget_host_impl.cc
index d6f200f19d742ea534f2dd79bfd34bc8adfd5836..1b2a20ce56329dc4d8e88fde7d8d2ec2c75d3ef2 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -1109,6 +1109,13 @@ void RenderWidgetHostImpl::NotifyScreenInfoChanged() {
 }
 
 void RenderWidgetHostImpl::SetDeviceScaleFactor(float scale) {
+#if defined(USE_AURA)
+  // Send secreen info as well because JavaScript API |window.open|
+  // uses screen info to determine the scale factor (crbug.com/155201).
+  // TODO(oshima|thakis): Consolidate SetDeviceScaleFactor and
+  // ScreenInfoChanged. crbug.com/155213.
+  NotifyScreenInfoChanged();
+#endif
   Send(new ViewMsg_SetDeviceScaleFactor(GetRoutingID(), scale));
 }