Revert of Make chrome/common pass "gn check"

chrome/common/chrome_switches.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.
 
 // Defines the shared command-line switches used by code in the Chrome
 // directory that don't have anywhere more specific to go.
 
 #ifndef CHROME_COMMON_CHROME_SWITCHES_H_
 #define CHROME_COMMON_CHROME_SWITCHES_H_
 
 #include "build/build_config.h"
 
 // Don't add more switch files here. This is linked into some places like the
 // installer where dependencies should be limited. Instead, have files
 // directly include your switch file.
+//
+// TODO(brettw) delete content_switches.h include and make callers include that
+// file manually if they need a content switch.
+#include "content/public/common/content_switches.h"
 
 namespace switches {
 
 // -----------------------------------------------------------------------------
 // Can't find the switch you are looking for? Try looking in
 // media/base/media_switches.cc or ui/gl/gl_switches.cc or one of the
 // .cc files corresponding to the *_switches.h files included above
 // instead.
 // -----------------------------------------------------------------------------
 
@@ skipping 392 matching lines @@
 #if defined(ENABLE_TASK_MANAGER)
 bool NewTaskManagerEnabled();
 #endif  // defined(ENABLE_TASK_MANAGER)
 
 // DON'T ADD RANDOM STUFF HERE. Put it in the main section above in
 // alphabetical order, or in one of the ifdefs (also in order in each section).
 
 }  // namespace switches
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H_