Remove obsolete code that invalidates document element on LayoutView resize

third_party/WebKit/Source/core/layout/LayoutView.cpp

Index: third_party/WebKit/Source/core/layout/LayoutView.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutView.cpp b/third_party/WebKit/Source/core/layout/LayoutView.cpp
index fda41470202c48d60e628399e24902b3df4cefeb..bc3ab68c3224a822d95c125fd48b2e22d2e619da 100644
--- a/third_party/WebKit/Source/core/layout/LayoutView.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutView.cpp
@@ -247,8 +247,6 @@ void LayoutView::layout() {
 
   SubtreeLayoutScope layoutScope(*this);
 
-  LayoutRect oldLayoutOverflowRect = layoutOverflowRect();
-
   // Use calcWidth/Height to get the new width/height, since this will take the
   // full page zoom factor into account.
   bool relayoutChildren =
@@ -283,17 +281,6 @@ void LayoutView::layout() {
 
   layoutContent();
 
-  if (layoutOverflowRect() != oldLayoutOverflowRect) {
-    // The document element paints the viewport background, so we need to
-    // invalidate it when layout overflow changes.
-    // FIXME: Improve viewport background styling/invalidation/painting.
-    // crbug.com/475115
-    if (Element* documentElement = document().documentElement()) {
-      if (LayoutObject* rootObject = documentElement->layoutObject())
-        rootObject->setShouldDoFullPaintInvalidation();
-    }
-  }
-
 #if ENABLE(ASSERT)
   checkLayoutState();
 #endif