Use float for scroll offset.

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

 // Copyright 2015 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 "core/layout/LayoutTestHelper.h"
 #include "core/layout/LayoutView.h"
 #include "core/layout/PaintInvalidationState.h"
 #include "core/paint/PaintLayer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 123 matching lines @@
       "height: 100px'></span>text text text");
   document().view()->updateAllLifecyclePhases();
 
   LayoutBlock* frameContainer =
       toLayoutBlock(getLayoutObjectByElementId("frameContainer"));
   LayoutBlock* frameBody = toLayoutBlock(frameDocument.body()->layoutObject());
   LayoutText* frameText = toLayoutText(frameBody->lastChild());
 
   // This case involves clipping: frame height is 50, y-coordinate of result rect is 13,
   // so height should be clipped to (50 - 13) == 37.
-  frameDocument.view()->setScrollPosition(DoublePoint(0, 47),
-                                          ProgrammaticScroll);
+  frameDocument.view()->setScrollOffset(ScrollOffset(0, 47),
+                                        ProgrammaticScroll);
   LayoutRect originalRect(4, 60, 20, 80);
   LayoutRect rect = originalRect;
   EXPECT_TRUE(frameText->mapToVisualRectInAncestorSpace(frameContainer, rect));
   EXPECT_EQ(rect, LayoutRect(4, 13, 20, 37));
 
   rect = originalRect;
   EXPECT_TRUE(frameText->mapToVisualRectInAncestorSpace(&layoutView(), rect));
   EXPECT_EQ(rect, LayoutRect(4, 13, 20, 37));
   checkPaintInvalidationStateRectMapping(rect, originalRect, *frameText,
                                          layoutView(), layoutView());
@@ skipping 45 matching lines @@
                        "style='width:100px;height:100px;'></div>");
   document().view()->updateAllLifecyclePhases();
 
   LayoutBlock* frameContainer =
       toLayoutBlock(getLayoutObjectByElementId("frameContainer"));
   LayoutBlock* frameBody = toLayoutBlock(frameDocument.body()->layoutObject());
   LayoutBlock* frameDiv = toLayoutBlock(frameBody->lastChild());
 
   // This part is copied from the LayoutView test, just to ensure that the mapped
   // rect is valid before display:none is set on the iframe.
-  frameDocument.view()->setScrollPosition(DoublePoint(0, 47),
-                                          ProgrammaticScroll);
+  frameDocument.view()->setScrollOffset(ScrollOffset(0, 47),
+                                        ProgrammaticScroll);
   LayoutRect originalRect(4, 60, 20, 80);
   LayoutRect rect = originalRect;
   EXPECT_TRUE(frameDiv->mapToVisualRectInAncestorSpace(frameContainer, rect));
   EXPECT_EQ(rect, LayoutRect(4, 13, 20, 37));
 
   Element* frameElement = document().getElementById("frame");
   frameElement->setInlineStyleProperty(CSSPropertyDisplay, "none");
   document().view()->updateAllLifecyclePhases();
 
   rect = originalRect;
@@ skipping 466 matching lines @@
       target->localOverflowRectForPaintInvalidation();
   EXPECT_EQ(LayoutRect(0, 0, 400, 400), targetOverflowRect);
   LayoutRect rect = targetOverflowRect;
   EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(&layoutView(), rect));
   EXPECT_EQ(LayoutRect(0, 0, 200, 200), rect);
   checkPaintInvalidationStateRectMapping(rect, targetOverflowRect, *target,
                                          layoutView(), layoutView());
 }
 
 }  // namespace blink