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

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_
 
@@ skipping 24 matching lines @@
 extern const char kAlwaysAuthorizePlugins[];
 extern const char kAppId[];
 extern const char kApp[];
 extern const char kAppsGalleryDownloadURL[];
 extern const char kAppsGalleryURL[];
 extern const char kAppsGalleryUpdateURL[];
 extern const char kAppModeAuthCode[];
 extern const char kAppModeOAuth2Token[];
 extern const char kAuthExtensionPath[];
 extern const char kAuthServerWhitelist[];
+extern const char kAutoOpenDevToolsForTabs[];
 extern const char kAutoSelectDesktopCaptureSource[];
 extern const char kBypassAppBannerEngagementChecks[];
 extern const char kCertificateTransparencyLog[];
 extern const char kCheckForUpdateIntervalSec[];
 extern const char kCipherSuiteBlacklist[];
 extern const char kCloudPrintFile[];
 extern const char kCloudPrintJobTitle[];
 extern const char kCloudPrintFileType[];
 extern const char kCloudPrintPrintTicket[];
 extern const char kCloudPrintSetupProxy[];
@@ skipping 354 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_