Enable resize and layout for frames with RemoteFrame ancestors

Source/core/frame/FrameView.cpp

Index: Source/core/frame/FrameView.cpp
diff --git a/Source/core/frame/FrameView.cpp b/Source/core/frame/FrameView.cpp
index 4531ee4e637ff563196e553b7d56f66621303165..33a02b9964f80a8347189cdaec56d338d77ff802 100644
--- a/Source/core/frame/FrameView.cpp
+++ b/Source/core/frame/FrameView.cpp
@@ -1161,7 +1161,7 @@ bool FrameView::useSlowRepaints(bool considerOverlap) const
 
     // The chromium compositor does not support scrolling a non-composited frame within a composited page through
     // the fast scrolling path, so force slow scrolling in that case.
-    if (m_frame->owner() && !hasCompositedContent() && m_frame->page() && m_frame->page()->mainFrame()->isLocalFrame() && m_frame->page()->deprecatedLocalMainFrame()->view()->hasCompositedContent())
+    if (m_frame->owner() && !hasCompositedContent() && m_frame->page() && m_frame->localFrameRoot()->view()->hasCompositedContent())

[eseidel, 2014/07/11 16:33:03]

Folks more active in the compositor or repaint system than I could better
comment on this codepath.

         return true;
 
     if (m_isOverlapped && considerOverlap)
@@ -2815,7 +2815,7 @@ void FrameView::updateLayoutAndStyleForPainting()
 
         view->compositor()->updateIfNeededRecursive();
 
-        if (view->compositor()->inCompositingMode() && m_frame->isMainFrame())
+        if (view->compositor()->inCompositingMode() && m_frame->isLocalRoot())
             m_frame->page()->scrollingCoordinator()->updateAfterCompositingChangeIfNeeded();
 
         updateCompositedSelectionBoundsIfNeeded();