Add profile selector menu to app list.

ui/app_list/views/app_list_view.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/app_list/views/app_list_view.h"
 
 #include "base/command_line.h"
 #include "base/strings/string_util.h"
 #include "ui/app_list/app_list_constants.h"
 #include "ui/app_list/app_list_model.h"
@@ skipping 111 matching lines @@
 
   // On non-aura the bubble has two widgets, and it's possible for the border
   // to be shown independently in odd situations. Explicitly hide the bubble
   // widget to ensure that any WM_WINDOWPOSCHANGED messages triggered by the
   // window manager do not have the SWP_SHOWWINDOW flag set which would cause
   // the border to be shown. See http://crbug.com/231687 .
   GetWidget()->Hide();
 #endif
 }
 
+void AppListView::SetModel(app_list::AppListModel* model) {
+  if (GetSigninDelegate())
+    GetSigninDelegate()->RemoveObserver(this);
+  // Sets the model on the view so the view is hooked up to listen to the model.
+  // This cleans up the observers of the old model.
+  app_list_main_view_->SetModel(model);
+  // Build the model which will notify the view, updating it. This also resets
+  // the signin delegate which will fail if any observers are listening to the
+  // old delegate.
+  if (delegate_)
+    delegate_->SetModel(model);
+  // Reset the model here, freeing it. This is done after all cleanup involving
+  // references to this model is complete.
+  model_.reset(model);
+  // Sets the signin view's delegate from the AppListViewDelegate.
+  signin_view_->SetDelegate(GetSigninDelegate());
+  if (GetSigninDelegate())
+    GetSigninDelegate()->AddObserver(this);
+  // Show the signin view if the new profile is not signed in.
+  OnSigninStatusChanged();
+}
+
 void AppListView::SetBubbleArrow(views::BubbleBorder::Arrow arrow) {
   GetBubbleFrameView()->bubble_border()->set_arrow(arrow);
   SizeToContents();  // Recalcuates with new border.
   GetBubbleFrameView()->SchedulePaint();
 }
 
 void AppListView::SetAnchorPoint(const gfx::Point& anchor_point) {
   set_anchor_rect(gfx::Rect(anchor_point, gfx::Size()));
   SizeToContents();  // Repositions view relative to the anchor.
 }
@@ skipping 29 matching lines @@
 
 void AppListView::Prerender() {
   app_list_main_view_->Prerender();
 }
 
 void AppListView::OnSigninStatusChanged() {
   const bool needs_signin =
       GetSigninDelegate() && GetSigninDelegate()->NeedSignin();
 
   signin_view_->SetVisible(needs_signin);
+  delegate_->RebuildAvatarMenuItems(model_.get());
   app_list_main_view_->SetVisible(!needs_signin);
   app_list_main_view_->search_box_view()->InvalidateMenu();
 }
 
 views::View* AppListView::GetInitiallyFocusedView() {
   return app_list_main_view_->search_box_view()->search_box();
 }
 
 gfx::ImageSkia AppListView::GetWindowIcon() {
   if (delegate_)
@@ skipping 66 matching lines @@
 
 void AppListView::OnSigninSuccess() {
   OnSigninStatusChanged();
 }
 
 SigninDelegate* AppListView::GetSigninDelegate() {
   return delegate_ ? delegate_->GetSigninDelegate() : NULL;
 }
 
 }  // namespace app_list