Use float for scroll offset.

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

Index: third_party/WebKit/Source/core/layout/LayoutBlock.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBlock.cpp b/third_party/WebKit/Source/core/layout/LayoutBlock.cpp
index 9bfd905154757811cdc6ad0321577388f786bc3f..bf2c6936e103ac7e4ef2dd8400212f5c5d28f1c1 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBlock.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBlock.cpp
@@ -397,10 +397,12 @@ void LayoutBlock::layout() {
 
   invalidateBackgroundObscurationStatus();
 
-  // If clamping is delayed, we will restore in PaintLayerScrollableArea::clampScrollPositionsAfterLayout.
-  // Restoring during the intermediate layout may clamp the scroller to the wrong bounds.
-  bool clampingDelayed = PaintLayerScrollableArea::
-      DelayScrollPositionClampScope::clampingIsDelayed();
+  // If clamping is delayed, we will restore in
+  // PaintLayerScrollableArea::clampScrollPositionsAfterLayout.
+  // Restoring during the intermediate layout may clamp the scroller to the
+  // wrong bounds.
+  bool clampingDelayed = PaintLayerScrollableArea::DelayScrollOffsetClampScope::
+      clampingIsDelayed();
   if (needsScrollAnchoring && !clampingDelayed)
     getScrollableArea()->scrollAnchor()->restore();