app_list: Add search box and search result view for v2.

ui/app_list/page_switcher.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/page_switcher.h"
 
 #include "third_party/skia/include/core/SkPath.h"
 #include "ui/app_list/pagination_model.h"
+#include "ui/app_list/view_ids.h"
 #include "ui/base/animation/throb_animation.h"
 #include "ui/gfx/canvas.h"
 #include "ui/views/controls/button/custom_button.h"
 #include "ui/views/layout/box_layout.h"
 
 namespace {
 
 const int kButtonSpacing = 10;
 const int kButtonWidth = 60;
 const int kButtonHeight = 6;
@@ skipping 73 matching lines @@
   return static_cast<PageSwitcherButton*>(buttons->child_at(index));
 }
 
 }  // namespace
 
 namespace app_list {
 
 PageSwitcher::PageSwitcher(PaginationModel* model)
     : model_(model),
       buttons_(NULL) {
+  set_id(VIEW_ID_PAGE_SWITCHER);
+
   buttons_ = new views::View;
   buttons_->SetLayoutManager(new views::BoxLayout(
       views::BoxLayout::kHorizontal, 0, 0, kButtonSpacing));
   AddChildView(buttons_);
 
   TotalPagesChanged();
   SelectedPageChanged(-1, model->selected_page());
   model_->AddObserver(this);
 }
 
@@ skipping 34 matching lines @@
 }
 
 void PageSwitcher::SelectedPageChanged(int old_selected, int new_selected) {
   if (old_selected >= 0 && old_selected < buttons_->child_count())
     GetButtonByIndex(buttons_, old_selected)->SetSelected(false);
   if (new_selected >= 0 && new_selected < buttons_->child_count())
     GetButtonByIndex(buttons_, new_selected)->SetSelected(true);
 }
 
 }  // namespace app_list