Enhance chrome.app.window API with title property

chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.h

Index: chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.h
diff --git a/chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.h b/chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.h
index 33ac1252b0c015d895a8967d5a109c4c389c0550..9a9a1d30ebeedeb8d7ea0cc37155f1e257e011d0 100644
--- a/chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.h
+++ b/chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.h
@@ -32,6 +32,7 @@ class AppShortcutLauncherItemController : public LauncherItemController {
   static AppShortcutLauncherItemController* Create(
       const std::string& app_id,
       const std::string& launch_id,
+      const std::string& title,
       ChromeLauncherController* controller);
 
   std::vector<content::WebContents*> GetRunningApplications();
@@ -64,9 +65,12 @@ class AppShortcutLauncherItemController : public LauncherItemController {
 
   const std::string& launch_id() const { return launch_id_; }
 
+  const std::string& title() const { return title_; }
+
  protected:
   AppShortcutLauncherItemController(const std::string& app_id,
                                     const std::string& launch_id,
+                                    const std::string& title,
                                     ChromeLauncherController* controller);
 
  private:
@@ -114,6 +118,9 @@ class AppShortcutLauncherItemController : public LauncherItemController {
   // uniquely identify each shelf item that has the same app_id.
   const std::string launch_id_;
 
+  // Title of the window that has its own icon in the shelf.
+  const std::string title_;
+
   DISALLOW_COPY_AND_ASSIGN(AppShortcutLauncherItemController);
 };