Index: content/browser/web_contents/web_contents_view_aura.cc |
diff --git a/content/browser/web_contents/web_contents_view_aura.cc b/content/browser/web_contents/web_contents_view_aura.cc |
index b387a93f24d1fd8b3fec5623e95504fb286b0283..68e28b305701b2912c29cc1f56e1018a1799c0b0 100644 |
--- a/content/browser/web_contents/web_contents_view_aura.cc |
+++ b/content/browser/web_contents/web_contents_view_aura.cc |
@@ -504,6 +504,21 @@ |
#endif |
} |
+ // Overridden from aura::WindowObserver: |
+ void OnWindowHierarchyChanged( |
+ const aura::WindowObserver::HierarchyChangeParams& params) override { |
+ if (params.receiver != view_->window_.get() || |
+ !params.target->Contains(view_->window_.get())) { |
+ return; |
+ } |
+ |
+ // Use the new parent's root window for calculating HiDPI subpixel offset. |
+ RenderWidgetHostViewAura* rwhv = ToRenderWidgetHostViewAura( |
+ view_->web_contents_->GetRenderWidgetHostView()); |
+ if (rwhv) |
+ rwhv->SnapToPhysicalPixelBoundary(); |
+ } |
+ |
#if defined(OS_WIN) |
// Constrained windows are added as children of the parent's parent's view |
// which may overlap with windowed NPAPI plugins. In that case, tell the RWHV |