Revert r156303 as non-Aura Metro mode is gone

content/public/common/content_switches.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/public/common/content_switches.h"
 
 #include "base/command_line.h"
 
 namespace switches {
 
@@ skipping 563 matching lines @@
 const char kEnableStrictSiteIsolation[]     = "enable-strict-site-isolation";
 
 // Enable support for ServiceWorker. See
 // https://github.com/slightlyoff/ServiceWorker for more information.
 const char kEnableServiceWorker[]           = "enable-service-worker";
 
 // Enable use of experimental TCP sockets API for sending data in the
 // SYN packet.
 const char kEnableTcpFastOpen[]             = "enable-tcp-fastopen";
 
-// Enable Text Service Framework(TSF) for text inputting instead of IMM32. This
-// flag is ignored on Metro environment.
-const char kEnableTextServicesFramework[]   = "enable-text-services-framework";
-
 // Enable multithreaded GPU compositing of web content.
 const char kEnableThreadedCompositing[]     = "enable-threaded-compositing";
 
 // Enable accelerated overflow scrolling in all cases.
 const char kEnableUniversalAcceleratedOverflowScroll[] =
     "enable-universal-accelerated-overflow-scroll";
 
 // Enable screen capturing support for MediaStream API.
 const char kEnableUserMediaScreenCapturing[] =
     "enable-usermedia-screen-capturing";
@@ skipping 464 matching lines @@
 #endif
 
 #if defined(OS_POSIX)
 // Causes the child processes to cleanly exit via calling exit().
 const char kChildCleanExit[]                = "child-clean-exit";
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches