Add user data dir field to Mac platform apps

chrome/browser/web_applications/web_app_mac.mm

Index: chrome/browser/web_applications/web_app_mac.mm
diff --git a/chrome/browser/web_applications/web_app_mac.mm b/chrome/browser/web_applications/web_app_mac.mm
index f8381486c47d9fd998e9278faa7039c4846776f0..aadf4e92c7e2c969e2dbf6ec516da92634a07026 100644
--- a/chrome/browser/web_applications/web_app_mac.mm
+++ b/chrome/browser/web_applications/web_app_mac.mm
@@ -72,9 +72,11 @@ NSBitmapImageRep* SkBitmapToRGBAImageRep(const SkBitmap& bitmap) {
 namespace web_app {
 
 WebAppShortcutCreator::WebAppShortcutCreator(
+    const FilePath& data_dir,
     const ShellIntegration::ShortcutInfo& shortcut_info,
     const string16& chrome_bundle_id)
-    : info_(shortcut_info),
+    : data_dir_(data_dir),
+      info_(shortcut_info),
       chrome_bundle_id_(chrome_bundle_id) {
 }
 
@@ -171,6 +173,8 @@ bool WebAppShortcutCreator::UpdatePlist(const FilePath& app_path) const {
   // 2. Fill in other values.
   [plist setObject:GetBundleIdentifier(plist)
            forKey:base::mac::CFToNSCast(kCFBundleIdentifierKey)];
+  [plist setObject:base::mac::FilePathToNSString(data_dir_)
+           forKey:app_mode::kCrAppModeUserDataDirKey];
 
   return [plist writeToFile:plist_path atomically:YES];
 }
@@ -235,7 +239,8 @@ void CreateShortcutTask(const FilePath& web_app_path,
                         const ShellIntegration::ShortcutInfo& shortcut_info) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::FILE));
   string16 bundle_id = UTF8ToUTF16(base::mac::BaseBundleID());
-  WebAppShortcutCreator shortcut_creator(shortcut_info, bundle_id);
+  WebAppShortcutCreator shortcut_creator(
+      web_app_path, shortcut_info, bundle_id);
   shortcut_creator.CreateShortcut();
 }