[Mac] Add interactive App Shim test.

chrome/common/mac/app_mode_common.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.
 
 #ifndef CHROME_COMMON_MAC_APP_MODE_COMMON_H_
 #define CHROME_COMMON_MAC_APP_MODE_COMMON_H_
 
 #import <Foundation/Foundation.h>
 
 #include "base/files/file_path.h"
@@ skipping 19 matching lines @@
 extern const char kAppShimSocketSymlinkName[];
 
 // Special app mode id used for the App Launcher.
 extern const char kAppListModeId[];
 
 // The process ID of the Chrome process that launched the app shim.
 // The presence of this switch instructs the app shim to send LaunchApp with
 // launch_now = false. This associates the shim without launching the app.
 extern const char kLaunchedByChromeProcessId[];
 
+// Indicates to the shim that it was launched for a test, so don't attempt to
+// launch Chrome.
+extern const char kLaunchedForTest[];
+
 // Path to an app shim bundle. Indicates to Chrome that this shim attempted to
 // launch but failed.
 extern const char kAppShimError[];
 
 // Keys for specifying the file types handled by an app.
 extern NSString* const kCFBundleDocumentTypesKey;
 extern NSString* const kCFBundleTypeExtensionsKey;
 extern NSString* const kCFBundleTypeIconFileKey;
 extern NSString* const kCFBundleTypeNameKey;
 extern NSString* const kCFBundleTypeMIMETypesKey;
@@ skipping 93 matching lines @@
   base::FilePath profile_dir;
 };
 
 // Check that the socket and its parent directory have the correct permissions
 // and are owned by the user.
 void VerifySocketPermissions(const base::FilePath& socket_path);
 
 }  // namespace app_mode
 
 #endif  // CHROME_COMMON_MAC_APP_MODE_COMMON_H_