Experimental app list: Remove start page button.

ui/app_list/views/contents_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/contents_view.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/logging.h"
@@ skipping 29 matching lines @@
   if (contents_switcher_view_)
     pagination_model_.RemoveObserver(contents_switcher_view_);
 }
 
 void ContentsView::InitNamedPages(AppListModel* model,
                                   AppListViewDelegate* view_delegate) {
   DCHECK(model);
 
   if (app_list::switches::IsExperimentalAppListEnabled()) {
     start_page_view_ = new StartPageView(app_list_main_view_, view_delegate);
-    AddLauncherPage(
-        start_page_view_, IDR_APP_LIST_SEARCH_ICON, NAMED_PAGE_START);
+    AddLauncherPage(start_page_view_, 0, NAMED_PAGE_START);
   } else {
     search_results_view_ =
         new SearchResultListView(app_list_main_view_, view_delegate);
     AddLauncherPage(search_results_view_, 0, NAMED_PAGE_SEARCH_RESULTS);
     search_results_view_->SetResults(model->results());
   }
 
   apps_container_view_ = new AppsContainerView(app_list_main_view_, model);
 
   AddLauncherPage(
@@ skipping 176 matching lines @@
 }
 
 void ContentsView::AddBlankPageForTesting() {
   AddLauncherPage(new views::View, 0);
 }
 
 int ContentsView::AddLauncherPage(views::View* view, int resource_id) {
   int page_index = view_model_->view_size();
   AddChildView(view);
   view_model_->Add(view, page_index);
-  if (contents_switcher_view_)
+  if (contents_switcher_view_ && resource_id)
     contents_switcher_view_->AddSwitcherButton(resource_id, page_index);
   pagination_model_.SetTotalPages(view_model_->view_size());
   return page_index;
 }
 
 int ContentsView::AddLauncherPage(views::View* view,
                                   int resource_id,
                                   NamedPage named_page) {
   int page_index = AddLauncherPage(view, resource_id);
   named_page_to_view_.insert(std::pair<NamedPage, int>(named_page, page_index));
@@ skipping 43 matching lines @@
 }
 
 void ContentsView::TransitionStarted() {
 }
 
 void ContentsView::TransitionChanged() {
   UpdatePageBounds();
 }
 
 }  // namespace app_list