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

base/win/win_util.h

 // 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.
 
 // =============================================================================
 // PLEASE READ
 //
 // In general, you should not be adding stuff to this file.
 //
 // - If your thing is only used in one place, just put it in a reasonable
@@ skipping 18 matching lines @@
 #include "base/base_export.h"
 #include "base/string16.h"
 
 struct IPropertyStore;
 struct _tagpropertykey;
 typedef _tagpropertykey PROPERTYKEY;
 
 namespace base {
 namespace win {
 
-// A Windows message reflected from other windows. This message is sent
-// with the following arguments:
-// hWnd - Target window
-// uMsg - kReflectedMessage
-// wParam - Should be 0
-// lParam - Pointer to MSG struct containing the original message.
-const int kReflectedMessage = WM_APP + 3;
-
 BASE_EXPORT void GetNonClientMetrics(NONCLIENTMETRICS* metrics);
 
 // Returns the string representing the current user sid.
 BASE_EXPORT bool GetUserSidString(std::wstring* user_sid);
 
 // Returns true if the shift key is currently pressed.
 BASE_EXPORT bool IsShiftPressed();
 
 // Returns true if the ctrl key is currently pressed.
 BASE_EXPORT bool IsCtrlPressed();
@@ skipping 69 matching lines @@
 BASE_EXPORT bool DisplayVirtualKeyboard();
 
 // Dismisses the on screen keyboard if it is being displayed on Windows 8 and.
 // above. Returns true on success.
 BASE_EXPORT bool DismissVirtualKeyboard();
 
 }  // namespace win
 }  // namespace base
 
 #endif  // BASE_WIN_WIN_UTIL_H_