Use float for scroll offset.

third_party/WebKit/Source/web/LinkHighlightImpl.cpp

Index: third_party/WebKit/Source/web/LinkHighlightImpl.cpp
diff --git a/third_party/WebKit/Source/web/LinkHighlightImpl.cpp b/third_party/WebKit/Source/web/LinkHighlightImpl.cpp
index b3010ba5c52821c58defabd79a080ad977c998ee..a9db55e8cd7fe7df291ffcaffc3ed751727f30a7 100644
--- a/third_party/WebKit/Source/web/LinkHighlightImpl.cpp
+++ b/third_party/WebKit/Source/web/LinkHighlightImpl.cpp
@@ -264,11 +264,10 @@ bool LinkHighlightImpl::computeHighlightLayerPathAndPosition(
     // Scrolling content layers have the same offset from layout object as the
     // non-scrolling layers. Thus we need to adjust for their scroll offset.
     if (m_isScrollingGraphicsLayer) {
-      DoubleSize adjustedScrollOffset = paintInvalidationContainer.layer()
-                                            ->getScrollableArea()
-                                            ->adjustedScrollOffset();
-      absoluteQuad.move(adjustedScrollOffset.width(),
-                        adjustedScrollOffset.height());
+      FloatPoint scrollPosition = paintInvalidationContainer.layer()
+                                      ->getScrollableArea()
+                                      ->scrollPosition();
+      absoluteQuad.move(toScrollOffset(scrollPosition));
     }
 
     // Transform node quads in target absolute coords to local coordinates in