Propagate window coordinates to out-of-process iframes renderers.

content/renderer/render_widget.cc

Index: content/renderer/render_widget.cc
diff --git a/content/renderer/render_widget.cc b/content/renderer/render_widget.cc
index 592a57c0c1d3a076f4b8354c9affead6d7f5bdd3..14bdf73987221be2f207eddf068ddfeed334ca4d 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -225,6 +225,7 @@ class RenderWidget::ScreenMetricsEmulator {
   // The following methods alter handlers' behavior for messages related to
   // widget size and position.
   void OnResizeMessage(const ResizeParams& params);
+  void OnUpdateWindowScreenRectMessage(const gfx::Rect& window_screen_rect);
   void OnUpdateScreenRectsMessage(const gfx::Rect& view_screen_rect,
                                   const gfx::Rect& window_screen_rect);
   void OnShowContextMenu(ContextMenuParams* params);
@@ -415,6 +416,13 @@ void RenderWidget::ScreenMetricsEmulator::OnResizeMessage(
   }
 }
 
+void RenderWidget::ScreenMetricsEmulator::OnUpdateWindowScreenRectMessage(
+    const gfx::Rect& window_screen_rect) {
+  original_window_screen_rect_ = window_screen_rect;
+  if (params_.screenPosition == WebDeviceEmulationParams::Desktop)
+    Reapply();
+}
+
 void RenderWidget::ScreenMetricsEmulator::OnUpdateScreenRectsMessage(
     const gfx::Rect& view_screen_rect,
     const gfx::Rect& window_screen_rect) {
@@ -1726,6 +1734,16 @@ void RenderWidget::OnUpdateScreenRects(const gfx::Rect& view_screen_rect,
   Send(new ViewHostMsg_UpdateScreenRects_ACK(routing_id()));
 }
 
+void RenderWidget::OnUpdateWindowScreenRect(
+    const gfx::Rect& window_screen_rect) {
+  if (screen_metrics_emulator_) {
+    screen_metrics_emulator_->OnUpdateWindowScreenRectMessage(
+        window_screen_rect);
+  } else {
+    window_screen_rect_ = window_screen_rect;
+  }
+}
+
 void RenderWidget::OnSetSurfaceIdNamespace(uint32_t surface_id_namespace) {
   if (compositor_)
     compositor_->SetSurfaceIdNamespace(surface_id_namespace);