WebMouseEvent coordinates are now fractional & private

content/browser/renderer_host/input/web_input_event_builders_mac_unittest.mm

 // 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 "content/browser/renderer_host/input/web_input_event_builders_mac.h"
 
 #include <Carbon/Carbon.h>
 #import <Cocoa/Cocoa.h>
 #include <stddef.h>
 
@@ skipping 591 matching lines @@
       content::WebMouseWheelEventBuilder::Build(mac_event,
                                                 [window contentView]);
   ui::MouseWheelEvent ui_event(mac_event);
 
   EXPECT_EQ(delta_x * ui::kScrollbarPixelsPerCocoaTick, web_event.deltaX);
   EXPECT_EQ(web_event.deltaX, ui_event.x_offset());
 
   EXPECT_EQ(delta_y * ui::kScrollbarPixelsPerCocoaTick, web_event.deltaY);
   EXPECT_EQ(web_event.deltaY, ui_event.y_offset());
 
-  EXPECT_EQ(11, web_event.x);
-  EXPECT_EQ(web_event.x, ui_event.x());
+  EXPECT_EQ(11, web_event.positionInWidget().x);
+  EXPECT_EQ(web_event.positionInWidget().x, ui_event.x());
 
   // Both ui:: and blink:: events use an origin at the top-left.
-  EXPECT_EQ(100 - 22, web_event.y);
-  EXPECT_EQ(web_event.y, ui_event.y());
+  EXPECT_EQ(100 - 22, web_event.positionInWidget().y);
+  EXPECT_EQ(web_event.positionInWidget().y, ui_event.y());
   [window close];
 }