Use float for scroll offset.

third_party/WebKit/Source/web/tests/FrameThrottlingTest.cpp

Index: third_party/WebKit/Source/web/tests/FrameThrottlingTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/FrameThrottlingTest.cpp b/third_party/WebKit/Source/web/tests/FrameThrottlingTest.cpp
index 42fedb3ec2a2caa266326d0dcd2dc567b3cf4053..2189fa89cfb7789aad68ce102e51ca005d9671b5 100644
--- a/third_party/WebKit/Source/web/tests/FrameThrottlingTest.cpp
+++ b/third_party/WebKit/Source/web/tests/FrameThrottlingTest.cpp
@@ -326,7 +326,7 @@ TEST_F(FrameThrottlingTest, UnthrottlingTriggersRepaint) {
       .mainFrameImpl()
       ->frameView()
       ->layoutViewportScrollableArea()
-      ->setScrollPosition(DoublePoint(0, 480), ProgrammaticScroll);
+      ->setScrollOffset(ScrollOffset(0, 480), ProgrammaticScroll);
   auto displayItems = compositeFrame();
   EXPECT_FALSE(displayItems.contains(SimCanvas::Rect, "green"));
 
@@ -365,7 +365,7 @@ TEST_F(FrameThrottlingTest, UnthrottlingTriggersRepaintInCompositedChild) {
       .mainFrameImpl()
       ->frameView()
       ->layoutViewportScrollableArea()
-      ->setScrollPosition(DoublePoint(0, 480), ProgrammaticScroll);
+      ->setScrollOffset(ScrollOffset(0, 480), ProgrammaticScroll);
   auto displayItems = compositeFrame();
   EXPECT_FALSE(displayItems.contains(SimCanvas::Rect, "green"));
 
@@ -399,7 +399,7 @@ TEST_F(FrameThrottlingTest, ChangeStyleInThrottledFrame) {
       .mainFrameImpl()
       ->frameView()
       ->layoutViewportScrollableArea()
-      ->setScrollPosition(DoublePoint(0, 480), ProgrammaticScroll);
+      ->setScrollOffset(ScrollOffset(0, 480), ProgrammaticScroll);
   auto displayItems = compositeFrame();
   EXPECT_FALSE(displayItems.contains(SimCanvas::Rect, "red"));
   EXPECT_FALSE(displayItems.contains(SimCanvas::Rect, "green"));