Make zoom using ctrl+mouse wheel work in win aura. Windows -non-aura had a hack that was a layering…

content/browser/web_contents/web_contents_view_win.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/browser/web_contents/web_contents_view_win.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_vector.h"
 #include "content/browser/renderer_host/render_view_host_factory.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
@@ skipping 367 matching lines @@
   // bubble state).
   if (web_contents_->GetDelegate()) {
     web_contents_->GetDelegate()->ContentsMouseEvent(
         web_contents_,
         gfx::Screen::GetNativeScreen()->GetCursorScreenPoint(),
         true);
   }
   return 0;
 }
 
-LRESULT WebContentsViewWin::OnReflectedMessage(
-    UINT msg, WPARAM wparam, LPARAM lparam, BOOL& handled) {
-  MSG* message = reinterpret_cast<MSG*>(lparam);
-  switch (message->message) {
-    case WM_MOUSEWHEEL:
-      // This message is reflected from the view() to this window.
-      if (GET_KEYSTATE_WPARAM(message->wParam) & MK_CONTROL) {
-        web_contents_->GetDelegate()->ContentsZoomChange(
-            GET_WHEEL_DELTA_WPARAM(message->wParam) > 0);
-        return 1;
-      }
-    break;
-  }
-  return 0;
-}
-
 LRESULT WebContentsViewWin::OnNCCalcSize(
     UINT message, WPARAM wparam, LPARAM lparam, BOOL& handled) {
   // Hack for ThinkPad mouse wheel driver. We have set the fake scroll bars
   // to receive scroll messages from ThinkPad touch-pad driver. Suppress
   // painting of scrollbars by returning 0 size for them.
   return 0;
 }
 
 LRESULT WebContentsViewWin::OnNCHitTest(
     UINT message, WPARAM wparam, LPARAM lparam, BOOL& handled) {
@@ skipping 60 matching lines @@
   si.nPage = 10;
   si.nPos = 50;
 
   ::SetScrollInfo(hwnd(), SB_HORZ, &si, FALSE);
   ::SetScrollInfo(hwnd(), SB_VERT, &si, FALSE);
 
   return 1;
 }
 
 }  // namespace content