Positions the launcher in the bottom left corner. Adds ShellDelegate

ui/aura_shell/launcher/launcher_model.h

Index: ui/aura_shell/launcher/launcher_model.h
diff --git a/ui/aura_shell/launcher/launcher_model.h b/ui/aura_shell/launcher/launcher_model.h
index 9aac41c09577bd19fd36100a354e537a66334dfa..242129e25ef8935ed74f2303a95353aadc4d75cf 100644
--- a/ui/aura_shell/launcher/launcher_model.h
+++ b/ui/aura_shell/launcher/launcher_model.h
@@ -10,6 +10,7 @@
 
 #include "base/observer_list.h"
 #include "ui/aura_shell/aura_shell_export.h"
+#include "ui/aura_shell/launcher/launcher_types.h"
 
 namespace views {
 class View;
@@ -25,40 +26,24 @@ class AURA_SHELL_EXPORT LauncherModel {
   LauncherModel();
   ~LauncherModel();
 
-  // Adds a new view to the model. The model takes ownership of the view.
-  void AddItem(views::View* view, int index, bool draggable);
-
-  // Removes an item by the view.
-  void RemoveItem(views::View* view);
+  // Adds a new item to the model.
+  void Add(int index, const LauncherItem& item);
 
   // Removes the item at |index|.
   void RemoveItemAt(int index);
 
-  // The selected index; -1 if nothing is selected.
-  void SetSelectedIndex(int index);
-  int selected_index() const { return selected_index_; }
+  // Changes the images of the specified item.
+  void SetTabbedImages(int index, const LauncherTabbedImages& images);
+  void SetAppImage(int index, const SkBitmap& image);
 
-  // Returns the index of |view|, or -1 if view isn't contained in this model.
-  int IndexOfItemByView(views::View* view);
+  const LauncherItems& items() const { return items_; }
   int item_count() const { return static_cast<int>(items_.size()); }
-  views::View* view_at(int index) { return items_[index].view; }
-  bool is_draggable(int index) { return items_[index].draggable; }
 
   void AddObserver(LauncherModelObserver* observer);
   void RemoveObserver(LauncherModelObserver* observer);
 
  private:
-  struct Item {
-    Item() : view(NULL), draggable(false) {}
-
-    // The view, we own this.
-    views::View* view;
-    bool draggable;
-  };
-  typedef std::vector<Item> Items;
-
-  Items items_;
-  int selected_index_;
+  LauncherItems items_;
   ObserverList<LauncherModelObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(LauncherModel);