Remove dead notification for number of wheel event handlers

content/renderer/render_view_impl.cc

 // 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/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 1718 matching lines @@
 }
 
 void RenderViewImpl::focusedNodeChanged(const WebNode& node) {
   has_scrolled_focused_editable_node_into_rect_ = false;
 
   Send(new ViewHostMsg_FocusedNodeChanged(routing_id_, IsEditableNode(node)));
 
   FOR_EACH_OBSERVER(RenderViewObserver, observers_, FocusedNodeChanged(node));
 }
 
-void RenderViewImpl::numberOfWheelEventHandlersChanged(unsigned num_handlers) {
-  Send(new ViewHostMsg_DidChangeNumWheelEvents(routing_id_, num_handlers));
-}
-
 void RenderViewImpl::didUpdateLayout() {
   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidUpdateLayout());
 
   // We don't always want to set up a timer, only if we've been put in that
   // mode by getting a |ViewMsg_EnablePreferredSizeChangedMode|
   // message.
   if (!send_preferred_size_changes_ || !webview())
     return;
 
   if (check_preferred_size_timer_.IsRunning())
@@ skipping 2299 matching lines @@
     std::vector<gfx::Size> sizes;
     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
     if (!url.isEmpty())
       urls.push_back(
           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
   }
   SendUpdateFaviconURL(urls);
 }
 
 }  // namespace content