Drag and drop between app list and launcher - First patch

ash/launcher/launcher_delegate.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_LAUNCHER_LAUNCHER_DELEGATE_H_
 #define ASH_LAUNCHER_LAUNCHER_DELEGATE_H_
 
 #include "ash/ash_export.h"
 #include "ash/launcher/launcher_types.h"
 #include "base/string16.h"
@@ skipping 88 matching lines @@
   // Callback used to allow delegate to perform initialization actions that
   // depend on the Launcher being in a known state.
   virtual void OnLauncherCreated(Launcher* launcher) = 0;
 
   // Callback used to inform the delegate that a specific launcher no longer
   // exists.
   virtual void OnLauncherDestroyed(Launcher* launcher) = 0;
 
   // True if the running launcher is the per application launcher.
   virtual bool IsPerAppLauncher() = 0;
+
+  // Get the launcher ID from an application ID.
+  virtual LauncherID GetLauncherIDForAppID(const std::string& app_id) = 0;
+
+  // Pins an app with |app_id| to launcher. A running instance will get pinned.
+  // In case there is no running instance a new launcher item is created and
+  // pinned.
+  virtual void PinAppWithID(const std::string& app_id) = 0;
+
+  // Unpins any app item(s) whose id is |app_id|. The new launcher will collect
+  // all items under one item, the old launcher might have multiple items.
+  virtual void UnpinAppsWithID(const std::string& app_id) = 0;
 };
 
 }  // namespace ash
 
 #endif  // ASH_LAUNCHER_LAUNCHER_DELEGATE_H_