Create Linux platform app shortcuts to run in their own process.

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 9cc19313a94815e438bc09876526a4bb7c9a63f8..e5a5ea4cb637f5cc5953df175dae2c4f09d8f87f 100644
--- a/chrome/browser/web_applications/web_app_mac.mm
+++ b/chrome/browser/web_applications/web_app_mac.mm
@@ -248,14 +248,15 @@ void WebAppShortcutCreator::RevealGeneratedBundleInFinder(
 namespace web_app {
 namespace internals {
 
-void CreateShortcutTask(const FilePath& web_app_path,
-                        const FilePath& profile_path,
-                        const ShellIntegration::ShortcutInfo& shortcut_info) {
+bool CreatePlatformShortcut(
+    const FilePath& web_app_path,
+    const FilePath& profile_path,
+    const ShellIntegration::ShortcutInfo& shortcut_info) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::FILE));
   string16 bundle_id = UTF8ToUTF16(base::mac::BaseBundleID());
   WebAppShortcutCreator shortcut_creator(web_app_path, shortcut_info,
                             bundle_id);
-  shortcut_creator.CreateShortcut();
+  return shortcut_creator.CreateShortcut();
 }
 
 }  // namespace internals