Fix experimental app list contents switcher being positioned incorrectly on profile switch.

ui/app_list/views/app_list_main_view.cc

 // Copyright 2013 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_main_view.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 19 matching lines @@
 namespace app_list {
 
 namespace {
 
 // Inner padding space in pixels of bubble contents.
 const int kInnerPadding = 1;
 
 // The maximum allowed time to wait for icon loading in milliseconds.
 const int kMaxIconLoadingWaitTimeInMs = 50;
 
+const int kContentsViewIndex = 1;
+
 }  // namespace
 
 ////////////////////////////////////////////////////////////////////////////////
 // AppListMainView::IconLoader
 
 class AppListMainView::IconLoader : public AppListItemObserver {
  public:
   IconLoader(AppListMainView* owner,
              AppListItem* item,
              float scale)
@@ skipping 49 matching lines @@
   search_box_view_ = new SearchBoxView(this, delegate);
   AddChildView(search_box_view_);
   AddContentsView();
   if (app_list::switches::IsExperimentalAppListEnabled())
     AddChildView(new ContentsSwitcherView(contents_view_));
 }
 
 void AppListMainView::AddContentsView() {
   contents_view_ = new ContentsView(
       this, pagination_model_, model_, delegate_);
-  AddChildView(contents_view_);
+  AddChildViewAt(contents_view_, kContentsViewIndex);
 
   search_box_view_->set_contents_view(contents_view_);
 
 #if defined(USE_AURA)
   contents_view_->SetPaintToLayer(true);
   contents_view_->SetFillsBoundsOpaquely(false);
   contents_view_->layer()->SetMasksToBounds(true);
 #endif
 }
 
@@ skipping 149 matching lines @@
   // Resubmit the query via a posted task so that all observers for the
   // uninstall notification are notified.
   base::MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&AppListMainView::QueryChanged,
                  weak_ptr_factory_.GetWeakPtr(),
                  search_box_view_));
 }
 
 }  // namespace app_list