Drag and drop between app list and launcher - First patch

ash/launcher/launcher_delegate.h

Index: ash/launcher/launcher_delegate.h
diff --git a/ash/launcher/launcher_delegate.h b/ash/launcher/launcher_delegate.h
index 88c08f70ead03b6a63762735bb893d5d4c50eb11..4e6e89b01fe625d44f8c353a365a44cfacb37f35 100644
--- a/ash/launcher/launcher_delegate.h
+++ b/ash/launcher/launcher_delegate.h
@@ -96,6 +96,18 @@ class ASH_EXPORT LauncherDelegate {
   // Callback used to inform the delegate that a specific launcher no longer
   // exists.
   virtual void OnLauncherDestroyed(Launcher* launcher) = 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. If there is a running instance in

[James Cook, 2013/04/29 22:08:29]

nice comment

[Mr4D (OOO till 08-26), 2013/04/30 16:59:01]

Okay, changed comment.

+  // launcher, the running instance is pinned. If 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 items whose id is |app_id|.

[James Cook, 2013/04/29 22:08:29]

Consider explaining why there might be more than one app pinned with the same
id.

[Mr4D (OOO till 08-26), 2013/04/30 16:59:01]

Done.

+  virtual void UnpinAppsWithID(const std::string& app_id) = 0;
+
 };
 
 }  // namespace ash