ash: Rename LauncherModel to ShelfModel.

* Move launcher_model.* from launcher/ to shelf/
* Rename to shelf_model.*

BUG=248353
TEST=None, no functional changes
[email protected],[email protected]

Review URL: https://codereview.chromium.org/71653003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235217 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/ash/shelf/shelf_model_observer.h b/ash/shelf/shelf_model_observer.h
index 46df44e..6d9f21fd 100644
--- a/ash/shelf/shelf_model_observer.h
+++ b/ash/shelf/shelf_model_observer.h
@@ -21,7 +21,7 @@
   // at.
   virtual void ShelfItemRemoved(int index, LauncherID id) = 0;
 
-  // Invoked after an item has been moved. See LauncherModel::Move() for details
+  // Invoked after an item has been moved. See ShelfModel::Move() for details
   // of the arguments.
   virtual void ShelfItemMoved(int start_index, int target_index) = 0;