First pass at fixing guest browser cookies issue.

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 97 matching lines @@
 // AppListMainView:
 
 AppListMainView::AppListMainView(AppListViewDelegate* delegate)
     : delegate_(delegate),
       model_(delegate->GetModel()),
       search_box_view_(nullptr),
       contents_view_(nullptr),
       custom_page_clickzone_(nullptr),
       weak_ptr_factory_(this) {
   SetLayoutManager(new views::BoxLayout(views::BoxLayout::kVertical, 0, 0, 0));
+  DLOG(ERROR) << "mainview";
   model_->AddObserver(this);
 }
 
 AppListMainView::~AppListMainView() {
   pending_icon_loaders_.clear();
   model_->RemoveObserver(this);
 }
 
 void AppListMainView::Init(gfx::NativeView parent,
                            int initial_apps_page,
@@ skipping 56 matching lines @@
 void AppListMainView::Close() {
   icon_loading_wait_timer_.Stop();
   contents_view_->CancelDrag();
 }
 
 void AppListMainView::Prerender() {
   contents_view_->Prerender();
 }
 
 void AppListMainView::ModelChanged() {
+  DLOG(ERROR) << "modelchanged";
   pending_icon_loaders_.clear();
   model_->RemoveObserver(this);
   model_ = delegate_->GetModel();
   model_->AddObserver(this);
   search_box_view_->ModelChanged();
   delete contents_view_;
   contents_view_ = NULL;
   AddContentsViews();
   Layout();
 }
@@ skipping 148 matching lines @@
   contents_view_->Back();
 }
 
 void AppListMainView::OnResultInstalled(SearchResult* result) {
   // Clears the search to show the apps grid. The last installed app
   // should be highlighted and made visible already.
   search_box_view_->ClearSearch();
 }
 
 }  // namespace app_list