Enhance chrome.app.window API for shelf integration with restore support

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

Index: chrome/browser/ui/ash/launcher/chrome_launcher_controller.h
diff --git a/chrome/browser/ui/ash/launcher/chrome_launcher_controller.h b/chrome/browser/ui/ash/launcher/chrome_launcher_controller.h
index 5315d36fb59ad61d2e9ef477f60fc131d336dbec..8570c547b932997e37a5ad84b8fcb8801d33eaf3 100644
--- a/chrome/browser/ui/ash/launcher/chrome_launcher_controller.h
+++ b/chrome/browser/ui/ash/launcher/chrome_launcher_controller.h
@@ -149,6 +149,15 @@ class ChromeLauncherController : public ash::mojom::ShelfObserver,
                  ash::LaunchSource source,
                  int event_flags);
 
+  // Opens a new instance of the application identified by |app_id|.
+  // Used by the app-list, and by pinned-app shelf items.|launch_id| is an id
+  // that can be passed to an app when launched in order to support multiple
+  // shelf items per app.
+  void LaunchAppWithLaunchId(const std::string& app_id,
+                             const std::string& launch_id,
+                             ash::LaunchSource source,
+                             int event_flags);
+
   // If |app_id| is running, reactivates the app's most recently active window,
   // otherwise launches and activates the app.
   // Used by the app-list, and by pinned-app shelf items.