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

chrome/browser/web_applications/web_app.cc

Index: chrome/browser/web_applications/web_app.cc
diff --git a/chrome/browser/web_applications/web_app.cc b/chrome/browser/web_applications/web_app.cc
index cbb169a91655d123ad963b321837990d7b63a57a..12e1ac694d798011d9e506bb7eec843e2fac4161 100644
--- a/chrome/browser/web_applications/web_app.cc
+++ b/chrome/browser/web_applications/web_app.cc
@@ -5,6 +5,7 @@
 #include "chrome/browser/web_applications/web_app.h"
 
 #include "base/bind.h"
+#include "base/bind_helpers.h"
 #include "base/file_util.h"
 #include "base/i18n/file_util_icu.h"
 #include "base/string_util.h"
@@ -118,20 +119,34 @@ std::string GetExtensionIdFromApplicationName(const std::string& app_name) {
 }
 
 void CreateShortcut(
-    const FilePath& data_dir,
+    const FilePath& profile_path,
     const ShellIntegration::ShortcutInfo& shortcut_info) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
   BrowserThread::PostTask(
       BrowserThread::FILE,
       FROM_HERE,
-      base::Bind(&internals::CreateShortcutTask,
-                 GetWebAppDataDirectory(
-                      data_dir,
-                      shortcut_info.extension_id,
-                      shortcut_info.url),
-                 data_dir,
+      base::Bind(base::IgnoreResult(&CreateShortcutOnFileThread),
+                 profile_path,
                  shortcut_info));
 }
 
+bool CreateShortcutOnFileThread(
+    const FilePath& profile_path,
+    const ShellIntegration::ShortcutInfo& shortcut_info) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
+
+  FilePath shortcut_data_dir = GetWebAppDataDirectory(
+      profile_path, shortcut_info.extension_id, shortcut_info.url);
+  // Ensure shortcut_data_dir exists
+  if (!file_util::PathExists(shortcut_data_dir) &&
+      !file_util::CreateDirectory(shortcut_data_dir)) {
+    return false;
+  }
+  return internals::CreatePlatformShortcut(
+      shortcut_data_dir, profile_path, shortcut_info);
+}
+
 bool IsValidUrl(const GURL& url) {
   static const char* const kValidUrlSchemes[] = {
       chrome::kFileScheme,