Remove the WM_SYSCOMMAND handling from the LegacyRenderWidgetHostHWND class.

ui/views/win/hwnd_message_handler.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 "ui/views/win/hwnd_message_handler.h"
 
 #include <dwmapi.h>
 #include <oleacc.h>
 #include <shellapi.h>
 #include <wtsapi32.h>
@@ skipping 963 matching lines @@
 LRESULT HWNDMessageHandler::HandleNcHitTestMessage(unsigned int message,
                                                    WPARAM w_param,
                                                    LPARAM l_param,
                                                    bool* handled) {
   LRESULT ret = OnNCHitTest(
       gfx::Point(CR_GET_X_LPARAM(l_param), CR_GET_Y_LPARAM(l_param)));
   *handled = IsMsgHandled();
   return ret;
 }
 
-LRESULT HWNDMessageHandler::HandleSysCommand(unsigned int message,
-                                             WPARAM w_param,
-                                             LPARAM l_param,
-                                             bool* handled) {
-  OnSysCommand(static_cast<UINT>(w_param),
-               gfx::Point(CR_GET_X_LPARAM(l_param), CR_GET_Y_LPARAM(l_param)));
-  *handled = IsMsgHandled();
-  return 0;
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // HWNDMessageHandler, private:
 
 int HWNDMessageHandler::GetAppbarAutohideEdges(HMONITOR monitor) {
   autohide_factory_.InvalidateWeakPtrs();
   return ViewsDelegate::views_delegate ?
       ViewsDelegate::views_delegate->GetAppbarAutohideEdges(
           monitor,
           base::Bind(&HWNDMessageHandler::OnAppbarAutohideEdgesChanged,
                      autohide_factory_.GetWeakPtr())) :
@@ skipping 1443 matching lines @@
     POINT cursor_pos = {0};
     ::GetCursorPos(&cursor_pos);
     if (memcmp(&cursor_pos, &mouse_location, sizeof(POINT)))
       return false;
     return true;
   }
   return false;
 }
 
 }  // namespace views