Add a menu item to content_shell to open devtools to make it more discoverable.

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"
 
 namespace switches {
 
 // By default, file:// URIs cannot read other file:// URIs. This is an
 // override for developers who need the old behavior for testing.
@@ skipping 509 matching lines @@
 // script connections to each other).
 const char kProcessPerTab[]                 = "process-per-tab";
 
 // The value of this switch determines whether the process is started as a
 // renderer or plugin host.  If it's empty, it's the browser.
 const char kProcessType[]                   = "type";
 
 // Register Pepper plugins (see pepper_plugin_registry.cc for its format).
 const char kRegisterPepperPlugins[]         = "register-pepper-plugins";
 
-// Enables remote debug over HTTP on the specified port.
-const char kRemoteDebuggingPort[]           = "remote-debugging-port";
-
 // Causes the renderer process to throw an assertion on launch.
 const char kRendererAssertTest[]            = "renderer-assert-test";
 
 // On POSIX only: the contents of this flag are prepended to the renderer
 // command line. Useful values might be "valgrind" or "xterm -e gdb --args".
 const char kRendererCmdPrefix[]             = "renderer-cmd-prefix";
 
 // Causes the process to run as renderer instead of as browser.
 const char kRendererProcess[]               = "renderer";
 
@@ skipping 161 matching lines @@
 // Sets the width and height above which a composited layer will get tiled.
 const char kMaxUntiledLayerWidth[]          = "max-untiled-layer-width";
 const char kMaxUntiledLayerHeight[]         = "max-untiled-layer-height";
 
 const char kEnableFixedPositionCreatesStackingContext[]
     = "enable-fixed-position-creates-stacking-context";
 const char kDisableFixedPositionCreatesStackingContext[]
     = "disable-fixed-position-creates-stacking-context";
 
 }  // namespace switches