RenderWidget::windowRect and viewRect should apply device emulation transform.

content/renderer/devtools/render_widget_screen_metrics_emulator.h

Index: content/renderer/devtools/render_widget_screen_metrics_emulator.h
diff --git a/content/renderer/devtools/render_widget_screen_metrics_emulator.h b/content/renderer/devtools/render_widget_screen_metrics_emulator.h
index 26230c933567ff4be9e8887bc18439b4bc279123..ba227d3b66b8a119152a41375070155eae404e11 100644
--- a/content/renderer/devtools/render_widget_screen_metrics_emulator.h
+++ b/content/renderer/devtools/render_widget_screen_metrics_emulator.h
@@ -24,7 +24,7 @@ struct ContextMenuParams;
 // RenderWidget. This includes resizing, placing view on the screen at desired
 // position, changing device scale factor, and scaling down the whole
 // widget if required to fit into the browser window.
-class RenderWidgetScreenMetricsEmulator {
+class CONTENT_EXPORT RenderWidgetScreenMetricsEmulator {
  public:
   RenderWidgetScreenMetricsEmulator(
       RenderWidgetScreenMetricsEmulatorDelegate* delegate,