[win] Add signin support for the app launcher.

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 652a5c8a8e04b57ae8544e2533bab0181cb6bbf8..ab604fec7dd1198dffc7b0181a87d1c21347e4c4 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/signin_delegate_observer.h"
 #include "ui/views/bubble/bubble_delegate.h"
 
 namespace views {
@@ -19,10 +20,13 @@ class AppListMainView;
 class AppListModel;
 class AppListViewDelegate;
 class PaginationModel;
+class SigninDelegate;
+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 {
+class APP_LIST_EXPORT AppListView : public views::BubbleDelegateView,
+                                    public SigninDelegateObserver {
  public:
   // Takes ownership of |delegate|.
   explicit AppListView(AppListViewDelegate* delegate);
@@ -48,6 +52,9 @@ class APP_LIST_EXPORT AppListView : public views::BubbleDelegateView {
 
   void UpdateBounds();
 
+  // Overridden from views::View:
+  virtual gfx::Size GetPreferredSize() OVERRIDE;
+
  private:
   // Overridden from views::WidgetDelegateView:
   virtual views::View* GetInitiallyFocusedView() OVERRIDE;
@@ -56,16 +63,25 @@ class APP_LIST_EXPORT AppListView : public views::BubbleDelegateView {
 
   // Overridden from views::View:
   virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE;
+  virtual void Layout() OVERRIDE;
 
   // Overridden from views::WidgetObserver:
   virtual void OnWidgetClosing(views::Widget* widget) OVERRIDE;
-  virtual void OnWidgetActivationChanged(views::Widget* widget, bool active)
-      OVERRIDE;
+  virtual void OnWidgetVisibilityChanged(
+      views::Widget* widget, bool visible) OVERRIDE;
+  virtual void OnWidgetActivationChanged(
+      views::Widget* widget, bool active) OVERRIDE;
+
+  // Overridden from SigninDelegateObserver:
+  virtual void OnSigninSuccess() OVERRIDE;
+
+  SigninDelegate* GetSigninDelegate();
 
   scoped_ptr<AppListModel> model_;
   scoped_ptr<AppListViewDelegate> delegate_;
 
   AppListMainView*  app_list_main_view_;
+  SigninView* signin_view_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListView);
 };