Revert change http://crrev.com/3c7af99a93f4b4837b2fbee5cb66697f66ccf241/

chrome/browser/ui/browser_command_controller.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 "chrome/browser/ui/browser_command_controller.h"
 
 #include <stddef.h>
 
 #include <string>
 
@@ skipping 169 matching lines @@
   // reserve browser back/forward and refresh here.
   ui::KeyboardCode key_code =
     static_cast<ui::KeyboardCode>(event.windowsKeyCode);
   if ((key_code == ui::VKEY_BROWSER_BACK && command_id == IDC_BACK) ||
       (key_code == ui::VKEY_BROWSER_FORWARD && command_id == IDC_FORWARD) ||
       (key_code == ui::VKEY_BROWSER_REFRESH && command_id == IDC_RELOAD)) {
     return true;
   }
 #endif
 
-  if (window()->IsFullscreen()) {
-    // In fullscreen, all commands except for IDC_FULLSCREEN and IDC_EXIT should
-    // be delivered to the web page. See, intent to implement,
-    // https://goo.gl/4tJ32G.
-    return command_id == IDC_EXIT || command_id == IDC_FULLSCREEN;
+  if (window()->IsFullscreen() && command_id == IDC_FULLSCREEN) {

[msw, 2017/03/25 01:07:26]

optional nit: curlies not needed

[Hzj_jie, 2017/03/25 02:19:19]

Different culture :)

+    return true;
   }
 
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
   // If this key was registered by the user as a content editing hotkey, then
   // it is not reserved.
   ui::TextEditKeyBindingsDelegateAuraLinux* delegate =
       ui::GetTextEditKeyBindingsDelegate();
   if (delegate && event.os_event && delegate->MatchEvent(*event.os_event, NULL))
     return false;
 #endif
@@ skipping 943 matching lines @@
 
 BrowserWindow* BrowserCommandController::window() {
   return browser_->window();
 }
 
 Profile* BrowserCommandController::profile() {
   return browser_->profile();
 }
 
 }  // namespace chrome