Add --auto-open-devtools-for-tabs flag.

chrome/common/chrome_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 "chrome/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "build/build_config.h"
 
@@ skipping 88 matching lines @@
 
 // Value of OAuth2 refresh token for --force-app-mode.
 const char kAppModeOAuth2Token[]            = "app-mode-oauth-token";
 
 // Enables overriding the path for the default authentication extension.
 const char kAuthExtensionPath[]             = "auth-ext-path";
 
 // Whitelist for Negotiate Auth servers
 const char kAuthServerWhitelist[]           = "auth-server-whitelist";
 
+// This flag makes Chrome auto-open DevTools window for each tab. It is
+// intended to be used by developers and automation to not require user
+// interaction for opening DevTools.
+const char kAutoOpenDevToolsForTabs[] =
+    "auto-open-devtools-for-tabs";
+
 // This flag makes Chrome auto-select the provided choice when an extension asks
 // permission to start desktop capture. Should only be used for tests. For
 // instance, --auto-select-desktop-capture-source="Entire screen" will
 // automatically select to share the entire screen in English locales.
 const char kAutoSelectDesktopCaptureSource[] =
     "auto-select-desktop-capture-source";
 
 // This flag causes the user engagement checks for showing app banners to be
 // bypassed. It is intended to be used by developers who wish to test that their
 // sites otherwise meet the criteria needed to show app banners.
@@ skipping 1253 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches