Plumb phase/momentum for WheelEvent.

chrome/browser/renderer_host/chrome_render_widget_host_view_mac_delegate.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.
 
 #import "chrome/browser/renderer_host/chrome_render_widget_host_view_mac_delegate.h"
 
 #include <cmath>
 
 #include "base/strings/sys_string_conversions.h"
 #include "chrome/browser/devtools/devtools_window.h"
@@ skipping 64 matching lines @@
 }
 
 - (void)touchesCancelledWithEvent:(NSEvent*)event {
   [historySwiper_ touchesCancelledWithEvent:event];
 }
 
 - (void)touchesEndedWithEvent:(NSEvent*)event {
   [historySwiper_ touchesEndedWithEvent:event];
 }
 
-- (BOOL)canRubberbandLeft:(NSView*)view {
-  return [historySwiper_ canRubberbandLeft:view];
-}
-
-- (BOOL)canRubberbandRight:(NSView*)view {
-  return [historySwiper_ canRubberbandRight:view];
-}
-
 // HistorySwiperDelegate methods
 
 - (BOOL)shouldAllowHistorySwiping {
   if (!renderWidgetHost_)
     return NO;
   RenderViewHost* renderViewHost = RenderViewHost::From(renderWidgetHost_);
   if (!renderViewHost)
     return NO;
   content::WebContents* webContents =
       content::WebContents::FromRenderViewHost(renderViewHost);
@@ skipping 101 matching lines @@
   Profile* profile = Profile::FromBrowserContext(host->GetBrowserContext());
   DCHECK(profile);
   PrefService* pref = profile->GetPrefs();
   pref->SetBoolean(prefs::kEnableContinuousSpellcheck,
                    !pref->GetBoolean(prefs::kEnableContinuousSpellcheck));
 }
 
 // END Spellchecking methods
 
 @end