Remove top controls clipping adjustment for document.rootScroller

third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp

Index: third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp
diff --git a/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp b/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp
index 183c283f6643d581e622967a72eaaa90dd9ddf8c..eb726420cbc1875906cfa07786894f8bce737bf7 100644
--- a/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp
+++ b/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp
@@ -1366,16 +1366,6 @@ void CompositedLayerMapping::updateScrollingLayerGeometry(
   IntRect overflowClipRect =
       pixelSnappedIntRect(layoutBox.overflowClipRect(LayoutPoint()));
 
-  const TopDocumentRootScrollerController& globalRootScrollerController =
-      layoutBox.document().page()->globalRootScrollerController();
-
-  if (&m_owningLayer == globalRootScrollerController.rootScrollerPaintLayer()) {
-    LayoutRect clipRect =
-        layoutBox.document().layoutView()->overflowClipRect(LayoutPoint());
-    DCHECK(clipRect.size() == LayoutSize(pixelSnappedIntRect(clipRect).size()));
-    overflowClipRect.setSize(pixelSnappedIntRect(clipRect).size());
-  }
-
   // When a m_childTransformLayer exists, local content offsets for the
   // m_scrollingLayer have already been applied. Otherwise, we apply them here.
   IntSize localContentOffset(0, 0);