Install platform apps into a separate data directory

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 8ccaa978f8029435947f4732d688a5b121637694..da2fdfce7bfb78228b06ac1fd6aa0e201642270f 100644
--- a/chrome/browser/web_applications/web_app_mac.mm
+++ b/chrome/browser/web_applications/web_app_mac.mm
@@ -20,8 +20,9 @@
 namespace web_app {
 
 WebAppShortcutCreator::WebAppShortcutCreator(
+    const FilePath& web_app_path,
     const ShellIntegration::ShortcutInfo& shortcut_info)
-    : info_(shortcut_info) {
+    : web_app_path_(web_app_path), info_(shortcut_info) {
 }
 
 WebAppShortcutCreator::~WebAppShortcutCreator() {
@@ -95,6 +96,8 @@ bool WebAppShortcutCreator::UpdatePlist(const FilePath& app_path) const {
            forKey:app_mode::kCrAppModeShortcutNameKey];
   [dict setObject:base::SysUTF8ToNSString(info_.url.spec())
            forKey:app_mode::kCrAppModeShortcutURLKey];
+  [dict setObject:base::mac::FilePathToNSString(web_app_path_)
+           forKey:app_mode::kCrAppModeUserDataDirKey];
   return [dict writeToFile:plist_path atomically:YES];
 }
 
@@ -111,7 +114,7 @@ namespace internals {
 void CreateShortcutTask(const FilePath& web_app_path,
                         const FilePath& profile_path,
                         const ShellIntegration::ShortcutInfo& shortcut_info) {
-  WebAppShortcutCreator shortcut_creator(shortcut_info);
+  WebAppShortcutCreator shortcut_creator(web_app_path, shortcut_info);
   shortcut_creator.CreateShortcut();
 }