Add popup layout tests with device scale factor

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 00c278e9debd13901b9162cceacf0ac203057a2b..86620ee0d9986f47fb45f42bd3b7026211be3492 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -2184,6 +2184,10 @@ gfx::RectF RenderViewImpl::ElementBoundsInWindow(
   return gfx::RectF(bounding_box_in_window);
 }
 
+float RenderViewImpl::GetDeviceScaleFactorForTest() const {
+  return device_scale_factor_;
+}
+
 void RenderViewImpl::didChangeIcon(WebLocalFrame* frame,
                                    WebIconURL::Type icon_type) {
   if (frame->parent())
@@ -3724,7 +3728,9 @@ void RenderViewImpl::UpdateWebViewWithDeviceScaleFactor() {
   if (IsUseZoomForDSFEnabled()) {
     webview()->setZoomFactorForDeviceScaleFactor(device_scale_factor_);
   } else {
+    LOG(ERROR) << "Update Device Scale Factor:" << device_scale_factor_;
     webview()->setDeviceScaleFactor(device_scale_factor_);
+    LOG(ERROR) << "DSF=" << webview()->deviceScaleFactor();

[oshima, 2016/01/08 22:27:55]

this is deleted in next patch.

[Noel Gordon, 2016/01/09 03:23:50]

Acknowledged.

   }
   webview()->settings()->setPreferCompositingToLCDTextEnabled(
       PreferCompositingToLCDText(compositor_deps_, device_scale_factor_));