Use float for scroll offset.

third_party/WebKit/Source/core/html/ImageDocument.cpp

Index: third_party/WebKit/Source/core/html/ImageDocument.cpp
diff --git a/third_party/WebKit/Source/core/html/ImageDocument.cpp b/third_party/WebKit/Source/core/html/ImageDocument.cpp
index 7d1d4cee7560ce481ea73dd952ecc8320c0b6c56..da160d03817e61d9157bc263b174fddce040cbfe 100644
--- a/third_party/WebKit/Source/core/html/ImageDocument.cpp
+++ b/third_party/WebKit/Source/core/html/ImageDocument.cpp
@@ -298,13 +298,13 @@ void ImageDocument::imageClicked(int x, int y) {
 
     double scale = this->scale();
 
-    double scrollX =
-        x / scale - static_cast<double>(frame()->view()->width()) / 2;
-    double scrollY =
-        y / scale - static_cast<double>(frame()->view()->height()) / 2;
+    float scrollX =
+        x / scale - static_cast<float>(frame()->view()->width()) / 2;
+    float scrollY =
+        y / scale - static_cast<float>(frame()->view()->height()) / 2;
 
-    frame()->view()->setScrollPosition(DoublePoint(scrollX, scrollY),
-                                       ProgrammaticScroll);
+    frame()->view()->setScrollOffset(ScrollOffset(scrollX, scrollY),
+                                     ProgrammaticScroll);
   }
 }