Use float for scroll offset.

third_party/WebKit/Source/web/ExternalPopupMenuTest.cpp

 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "web/ExternalPopupMenu.h"
 
 #include "core/HTMLNames.h"
 #include "core/dom/NodeComputedStyle.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/VisualViewport.h"
@@ skipping 140 matching lines @@
       mainFrame()->frame()->document()->getElementById("select"));
   LayoutMenuList* menuList = toLayoutMenuList(select->layoutObject());
   ASSERT_TRUE(menuList);
 
   VisualViewport& visualViewport =
       webView()->page()->frameHost().visualViewport();
 
   IntRect rectInDocument = menuList->absoluteBoundingBoxRect();
 
   webView()->setPageScaleFactor(2);
-  IntPoint scrollDelta(20, 30);
+  ScrollOffset scrollDelta(20, 30);
   visualViewport.move(scrollDelta);
 
   select->showPopup();
 
-  EXPECT_EQ(rectInDocument.x() - scrollDelta.x(), client().shownBounds().x);
-  EXPECT_EQ(rectInDocument.y() - scrollDelta.y(), client().shownBounds().y);
+  EXPECT_EQ(rectInDocument.x() - scrollDelta.width(), client().shownBounds().x);
+  EXPECT_EQ(rectInDocument.y() - scrollDelta.height(),
+            client().shownBounds().y);
 }
 
 TEST_F(ExternalPopupMenuTest, DidAcceptIndex) {
   registerMockedURLLoad("select.html");
   loadFrame("select.html");
 
   HTMLSelectElement* select = toHTMLSelectElement(
       mainFrame()->frame()->document()->getElementById("select"));
   LayoutMenuList* menuList = toLayoutMenuList(select->layoutObject());
   ASSERT_TRUE(menuList);
@@ skipping 45 matching lines @@
 
   WebExternalPopupMenuClient* client =
       static_cast<ExternalPopupMenu*>(select->popup());
   WebVector<int> indices;
   client->didAcceptIndices(indices);
   EXPECT_FALSE(select->popupIsVisible());
   EXPECT_EQ(-1, select->selectedIndex());
 }
 
 }  // namespace blink