[Mac] Make app shims load the same framework version as the running Chrome process.

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 11 matching lines @@
 const AEEventClass kAEChromeAppClass = 'cApp';
 const AEEventID kAEChromeAppPing = 'ping';
 
 // The IPC socket used to communicate between app shims and Chrome will be
 // created under a temporary directory with this name.
 extern const char kAppShimSocketShortName[];
 // A symlink to allow the app shim to find the socket will be created under the
 // user data dir with this name.
 extern const char kAppShimSocketSymlinkName[];
 
+// A symlink used to store the version string of the currently running Chrome.
+// The shim will read this to determine which version of the framework to load.
+extern const char kAppShimVersionSymlinkName[];
+
 // 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.
@@ skipping 56 matching lines @@
 
 // Placeholders used in the app mode loader bundle' Info.plist:
 extern NSString* const kShortcutIdPlaceholder; // Extension shortcut ID.
 extern NSString* const kShortcutNamePlaceholder; // Extension name.
 extern NSString* const kShortcutURLPlaceholder;
 // Bundle ID of the Chrome browser bundle.
 extern NSString* const kShortcutBrowserBundleIDPlaceholder;
 
 // Current major/minor version numbers of |ChromeAppModeInfo| (defined below).
 const unsigned kCurrentChromeAppModeInfoMajorVersion = 1;
-const unsigned kCurrentChromeAppModeInfoMinorVersion = 2;
+const unsigned kCurrentChromeAppModeInfoMinorVersion = 3;
 
 // The structure used to pass information from the app mode loader to the
 // (browser) framework. This is versioned using major and minor version numbers,
 // written below as v<major>.<minor>. Version-number checking is done by the
 // framework, and the framework must accept all structures with the same major
 // version number. It may refuse to load if the major version of the structure
 // is different from the one it accepts.
 struct ChromeAppModeInfo {
  public:
   ChromeAppModeInfo();
@@ skipping 35 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_