Use float for scroll offset.

third_party/WebKit/Source/core/testing/Internals.cpp

Index: third_party/WebKit/Source/core/testing/Internals.cpp
diff --git a/third_party/WebKit/Source/core/testing/Internals.cpp b/third_party/WebKit/Source/core/testing/Internals.cpp
index 36893f2e574e04b271d6414c6c5ebb07a3dce7f0..42e80d3bc4098aa5bd367ed0c790a671fceaee4a 100644
--- a/third_party/WebKit/Source/core/testing/Internals.cpp
+++ b/third_party/WebKit/Source/core/testing/Internals.cpp
@@ -235,7 +235,7 @@ void Internals::resetToConsistentState(Page* page) {
   page->deprecatedLocalMainFrame()
       ->view()
       ->layoutViewportScrollableArea()
-      ->setScrollPosition(IntPoint(0, 0), ProgrammaticScroll);
+      ->setScrollOffset(ScrollOffset(), ProgrammaticScroll);
   overrideUserPreferredLanguages(Vector<AtomicString>());
   if (!page->deprecatedLocalMainFrame()
            ->spellChecker()
@@ -1051,7 +1051,7 @@ void Internals::setFrameViewPosition(Document* document,
   bool scrollbarsSuppressedOldValue = frameView->scrollbarsSuppressed();
 
   frameView->setScrollbarsSuppressed(false);
-  frameView->updateScrollPositionFromInternals(IntPoint(x, y));
+  frameView->updateScrollOffsetFromInternals(IntSize(x, y));
   frameView->setScrollbarsSuppressed(scrollbarsSuppressedOldValue);
 }
 
@@ -2893,18 +2893,18 @@ int Internals::visualViewportWidth() {
       .width();
 }
 
-double Internals::visualViewportScrollX() {
+float Internals::visualViewportScrollX() {
   if (!frame())
     return 0;
 
-  return frame()->view()->getScrollableArea()->scrollPositionDouble().x();
+  return frame()->view()->getScrollableArea()->scrollOffset().width();
 }
 
-double Internals::visualViewportScrollY() {
+float Internals::visualViewportScrollY() {
   if (!frame())
     return 0;
 
-  return frame()->view()->getScrollableArea()->scrollPositionDouble().y();
+  return frame()->view()->getScrollableArea()->scrollOffset().height();
 }
 
 ValueIterable<int>::IterationSource* Internals::startIteration(