Plumb phase/momentum for WheelEvent.

content/browser/renderer_host/render_widget_host_view_mac_unittest.mm

 // Copyright (c) 2012 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/render_widget_host_view_mac.h"
 
 #include <Cocoa/Cocoa.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <tuple>
@@ skipping 78 matching lines @@
                                  consumed:(BOOL)consumed {
   if (!consumed && event.type == blink::WebInputEvent::GestureScrollUpdate)
     unhandledWheelEventReceived_ = true;
 }
 - (void)touchesBeganWithEvent:(NSEvent*)event {}
 - (void)touchesMovedWithEvent:(NSEvent*)event {}
 - (void)touchesCancelledWithEvent:(NSEvent*)event {}
 - (void)touchesEndedWithEvent:(NSEvent*)event {}
 - (void)beginGestureWithEvent:(NSEvent*)event {}
 - (void)endGestureWithEvent:(NSEvent*)event {}
-- (BOOL)canRubberbandLeft:(NSView*)view {
-  return true;
-}
-- (BOOL)canRubberbandRight:(NSView*)view {
-  return true;
-}
 
 @end
 
 namespace content {
 
 namespace {
 
 std::string GetInputMessageTypes(MockRenderProcessHost* process) {
   std::string result;
   for (size_t i = 0; i < process->sink().message_count(); ++i) {
@@ skipping 1132 matching lines @@
   // Verify that Event.Latency.OS.MOUSE_WHEEL histogram is computed properly.
   NSEvent* wheelEvent = MockScrollWheelEventWithPhase(@selector(phaseBegan),3);
   [view->cocoa_view() scrollWheel:wheelEvent];
   histogram_tester.ExpectTotalCount("Event.Latency.OS.MOUSE_WHEEL", 1);
 
   // Clean up.
   host->ShutdownAndDestroyWidget(true);
 }
 
 }  // namespace content