Add profile selector menu to app list.

ui/app_list/views/app_list_view.h

Index: ui/app_list/views/app_list_view.h
diff --git a/ui/app_list/views/app_list_view.h b/ui/app_list/views/app_list_view.h
index eb21ceb3ed654417e46415704c500405ec5e046e..21f63777bbf50bb30e92a1c512f0f405e1f473f2 100644
--- a/ui/app_list/views/app_list_view.h
+++ b/ui/app_list/views/app_list_view.h
@@ -7,6 +7,7 @@
 
 #include "base/memory/scoped_ptr.h"
 #include "ui/app_list/app_list_export.h"
+#include "ui/app_list/app_list_model_observer.h"
 #include "ui/app_list/signin_delegate_observer.h"
 #include "ui/views/bubble/bubble_delegate.h"
 
@@ -26,7 +27,8 @@ class SigninView;
 // AppListView is the top-level view and controller of app list UI. It creates
 // and hosts a AppsGridView and passes AppListModel to it for display.
 class APP_LIST_EXPORT AppListView : public views::BubbleDelegateView,
-                                    public SigninDelegateObserver {
+                                    public SigninDelegateObserver,
+                                    public AppListModelObserver {
  public:
   // Takes ownership of |delegate|.
   explicit AppListView(AppListViewDelegate* delegate);
@@ -91,6 +93,9 @@ class APP_LIST_EXPORT AppListView : public views::BubbleDelegateView,
   // Overridden from SigninDelegateObserver:
   virtual void OnSigninSuccess() OVERRIDE;
 
+  // Overridden from app_list::AppListModelObserver:
+  virtual void OnAppListModelProfilesChanged() OVERRIDE;
+
   SigninDelegate* GetSigninDelegate();
 
   scoped_ptr<AppListModel> model_;