Revert of Add native X11 testing to chromeos::EventRewriter unit tests

chrome/browser/chromeos/events/event_rewriter.cc

 // Copyright 2014 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 "chrome/browser/chromeos/events/event_rewriter.h"
 
 #include <vector>
 
 #include "ash/wm/window_state.h"
 #include "ash/wm/window_util.h"
@@ skipping 119 matching lines @@
 void UpdateX11EventMask(int ui_flags, unsigned int* x_flags) {
   static struct {
     int ui;
     int x;
   } flags[] = {
     {ui::EF_CONTROL_DOWN, ControlMask},
     {ui::EF_SHIFT_DOWN, ShiftMask},
     {ui::EF_ALT_DOWN, Mod1Mask},
     {ui::EF_CAPS_LOCK_DOWN, LockMask},
     {ui::EF_ALTGR_DOWN, Mod5Mask},
-    {ui::EF_COMMAND_DOWN, Mod4Mask},
     {ui::EF_MOD3_DOWN, Mod3Mask},
     {ui::EF_NUMPAD_KEY, Mod2Mask},
     {ui::EF_LEFT_MOUSE_BUTTON, Button1Mask},
     {ui::EF_MIDDLE_MOUSE_BUTTON, Button2Mask},
     {ui::EF_RIGHT_MOUSE_BUTTON, Button3Mask},
   };
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(flags); ++i) {
     if (ui_flags & flags[i].ui)
       *x_flags |= flags[i].x;
     else
@@ skipping 607 matching lines @@
 
   XIFreeDeviceInfo(device_info);
 }
 
 void EventRewriter::DeviceRemoved(int device_id) {
   device_id_to_type_.erase(device_id);
 }
 #endif
 
 }  // namespace chromeos