Use float for scroll offset.

third_party/WebKit/Source/core/layout/compositing/CompositedLayerMappingTest.cpp

 // Copyright 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 "core/layout/compositing/CompositedLayerMapping.h"
 
 #include "core/frame/FrameView.h"
 #include "core/layout/LayoutBoxModelObject.h"
 #include "core/layout/LayoutTestHelper.h"
 #include "core/layout/api/LayoutViewItem.h"
@@ skipping 108 matching lines @@
                           paintLayer->graphicsLayerBacking(), IntRect()));
 }
 
 TEST_F(CompositedLayerMappingTest, VerticalRightLeftWritingModeDocument) {
   setBodyInnerHTML(
       "<style>html,body { margin: 0px } html { -webkit-writing-mode: "
       "vertical-rl}</style> <div id='target' style='width: 10000px; height: "
       "200px;'></div>");
 
   document().view()->updateAllLifecyclePhases();
-  document().view()->setScrollPosition(DoublePoint(-5000, 0),
-                                       ProgrammaticScroll);
+  document().view()->setScrollOffset(ScrollOffset(-5000, 0),
+                                     ProgrammaticScroll);
   document().view()->updateAllLifecyclePhases();
 
   PaintLayer* paintLayer = document().layoutViewItem().layer();
   ASSERT_TRUE(paintLayer->graphicsLayerBacking());
   ASSERT_TRUE(paintLayer->compositedLayerMapping());
   // A scroll by -5000px is equivalent to a scroll by (10000 - 5000 - 800)px =
   // 4200px in non-RTL mode. Expanding the resulting rect by 4000px in each
   // direction yields this result.
   EXPECT_RECT_EQ(IntRect(200, 0, 8800, 600),
                  recomputeInterestRect(paintLayer->graphicsLayerBacking()));
@@ skipping 314 matching lines @@
       "  body { margin: 0; }"
       "</style>"
       "<div id='div' style='width: 100px; height: 10000px'>Text</div>");
 
   document().view()->updateAllLifecyclePhases();
   GraphicsLayer* rootScrollingLayer =
       document().layoutViewItem().layer()->graphicsLayerBackingForScrolling();
   EXPECT_RECT_EQ(IntRect(0, 0, 800, 4600),
                  previousInterestRect(rootScrollingLayer));
 
-  document().view()->setScrollPosition(IntPoint(0, 300), ProgrammaticScroll);
+  document().view()->setScrollOffset(ScrollOffset(0, 300), ProgrammaticScroll);
   document().view()->updateAllLifecyclePhases();
   // Still use the previous interest rect because the recomputed rect hasn't
   // changed enough.
   EXPECT_RECT_EQ(IntRect(0, 0, 800, 4900),
                  recomputeInterestRect(rootScrollingLayer));
   EXPECT_RECT_EQ(IntRect(0, 0, 800, 4600),
                  previousInterestRect(rootScrollingLayer));
 
-  document().view()->setScrollPosition(IntPoint(0, 600), ProgrammaticScroll);
+  document().view()->setScrollOffset(ScrollOffset(0, 600), ProgrammaticScroll);
   document().view()->updateAllLifecyclePhases();
   // Use recomputed interest rect because it changed enough.
   EXPECT_RECT_EQ(IntRect(0, 0, 800, 5200),
                  recomputeInterestRect(rootScrollingLayer));
   EXPECT_RECT_EQ(IntRect(0, 0, 800, 5200),
                  previousInterestRect(rootScrollingLayer));
 
-  document().view()->setScrollPosition(IntPoint(0, 5400), ProgrammaticScroll);
+  document().view()->setScrollOffset(ScrollOffset(0, 5400), ProgrammaticScroll);
   document().view()->updateAllLifecyclePhases();
   EXPECT_RECT_EQ(IntRect(0, 1400, 800, 8600),
                  recomputeInterestRect(rootScrollingLayer));
   EXPECT_RECT_EQ(IntRect(0, 1400, 800, 8600),
                  previousInterestRect(rootScrollingLayer));
 
-  document().view()->setScrollPosition(IntPoint(0, 9000), ProgrammaticScroll);
+  document().view()->setScrollOffset(ScrollOffset(0, 9000), ProgrammaticScroll);
   document().view()->updateAllLifecyclePhases();
   // Still use the previous interest rect because it contains the recomputed
   // interest rect.
   EXPECT_RECT_EQ(IntRect(0, 5000, 800, 5000),
                  recomputeInterestRect(rootScrollingLayer));
   EXPECT_RECT_EQ(IntRect(0, 1400, 800, 8600),
                  previousInterestRect(rootScrollingLayer));
 
-  document().view()->setScrollPosition(IntPoint(0, 2000), ProgrammaticScroll);
+  document().view()->setScrollOffset(ScrollOffset(0, 2000), ProgrammaticScroll);
   // Use recomputed interest rect because it changed enough.
   document().view()->updateAllLifecyclePhases();
   EXPECT_RECT_EQ(IntRect(0, 0, 800, 6600),
                  recomputeInterestRect(rootScrollingLayer));
   EXPECT_RECT_EQ(IntRect(0, 0, 800, 6600),
                  previousInterestRect(rootScrollingLayer));
 }
 
 TEST_F(CompositedLayerMappingTest, InterestRectChangeOnShrunkenViewport) {
   setBodyInnerHTML(
@@ skipping 186 matching lines @@
       "<iframe id=frame src='http://test.com' width='500' height='500' "
       "frameBorder='0'>"
       "</iframe>");
 
   Document& frameDocument = setupChildIframe(
       "frame",
       "<style>body { margin: 0; } #target { width: 200px; height: 200px; "
       "will-change: transform}</style><div id=target></div>");
 
   // Scroll 8000 pixels down to move the iframe into view.
-  document().view()->setScrollPosition(DoublePoint(0.0, 8000.0),
-                                       ProgrammaticScroll);
+  document().view()->setScrollOffset(ScrollOffset(0.0, 8000.0),
+                                     ProgrammaticScroll);
   document().view()->updateAllLifecyclePhases();
 
   Element* target = frameDocument.getElementById("target");
   ASSERT_TRUE(target);
 
   EXPECT_RECT_EQ(
       IntRect(0, 0, 200, 200),
       recomputeInterestRect(
           target->layoutObject()->enclosingLayer()->graphicsLayerBacking()));
 }
 
 TEST_F(CompositedLayerMappingTest, InterestRectOfScrolledIframe) {
   document().setBaseURLOverride(KURL(ParsedURLString, "http://test.com"));
   document().frame()->settings()->setPreferCompositingToLCDTextEnabled(true);
   setBodyInnerHTML(
       "<style>body { margin: 0; } ::-webkit-scrollbar { display: none; "
       "}</style>"
       "<iframe id=frame src='http://test.com' width='500' height='500' "
       "frameBorder='0'>"
       "</iframe>");
 
   Document& frameDocument =
       setupChildIframe("frame",
                        "<style>body { margin: 0; } #target { width: 200px; "
                        "height: 8000px;}</style><div id=target></div>");
 
   document().view()->updateAllLifecyclePhases();
 
   // Scroll 7500 pixels down to bring the scrollable area to the bottom.
-  frameDocument.view()->setScrollPosition(DoublePoint(0.0, 7500.0),
-                                          ProgrammaticScroll);
+  frameDocument.view()->setScrollOffset(ScrollOffset(0.0, 7500.0),
+                                        ProgrammaticScroll);
   document().view()->updateAllLifecyclePhases();
 
   ASSERT_TRUE(frameDocument.view()->layoutViewItem().hasLayer());
   EXPECT_RECT_EQ(IntRect(0, 3500, 500, 4500),
                  recomputeInterestRect(frameDocument.view()
                                            ->layoutViewItem()
                                            .enclosingLayer()
                                            ->graphicsLayerBacking()));
 }
 
@@ skipping 11 matching lines @@
 
   Document& frameDocument =
       setupChildIframe("frame",
                        "<style>body { margin: 0; } #target { width: 200px; "
                        "height: 8000px;}</style> <div id=target></div>");
 
   document().view()->updateAllLifecyclePhases();
 
   // Scroll 3000 pixels down to bring the scrollable area to somewhere in the
   // middle.
-  frameDocument.view()->setScrollPosition(DoublePoint(0.0, 3000.0),
-                                          ProgrammaticScroll);
+  frameDocument.view()->setScrollOffset(ScrollOffset(0.0, 3000.0),
+                                        ProgrammaticScroll);
   document().view()->updateAllLifecyclePhases();
 
   ASSERT_TRUE(frameDocument.view()->layoutViewItem().hasLayer());
   // The width is 485 pixels due to the size of the scrollbar.
   EXPECT_RECT_EQ(IntRect(0, 0, 500, 7500),
                  recomputeInterestRect(frameDocument.view()
                                            ->layoutViewItem()
                                            .enclosingLayer()
                                            ->graphicsLayerBacking()));
 }
@@ skipping 249 matching lines @@
     document().view()->updateAllLifecyclePhases();
     ASSERT_EQ(document().documentElement(),
               rootScrollerController.globalRootScroller());
 
     EXPECT_TRUE(mapping3->clippingLayer());
     EXPECT_TRUE(mapping3->clippingLayer()->platformLayer()->masksToBounds());
   }
 }
 
 }  // namespace blink