Revert of Replace AllAppsTileItemView with ArrowExpandView

ui/app_list/views/start_page_view.cc

 // Copyright 2014 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/start_page_view.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/i18n/rtl.h"
 #include "base/macros.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/accessibility/ax_node_data.h"
 #include "ui/app_list/app_list_constants.h"
 #include "ui/app_list/app_list_features.h"
 #include "ui/app_list/app_list_item.h"
 #include "ui/app_list/app_list_model.h"
 #include "ui/app_list/app_list_switches.h"
 #include "ui/app_list/app_list_view_delegate.h"
 #include "ui/app_list/search_result.h"
 #include "ui/app_list/views/all_apps_tile_item_view.h"
 #include "ui/app_list/views/app_list_main_view.h"
 #include "ui/app_list/views/contents_view.h"
 #include "ui/app_list/views/custom_launcher_page_view.h"
-#include "ui/app_list/views/expand_arrow_view.h"
 #include "ui/app_list/views/indicator_chip_view.h"
 #include "ui/app_list/views/search_box_view.h"
 #include "ui/app_list/views/search_result_container_view.h"
 #include "ui/app_list/views/search_result_tile_item_view.h"
 #include "ui/app_list/views/suggestions_container_view.h"
 #include "ui/app_list/views/tile_item_view.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/strings/grit/ui_strings.h"
@@ skipping 13 matching lines @@
 constexpr int kInstantContainerSpacing = 24;
 constexpr int kSearchBoxAndTilesSpacing = 35;
 constexpr int kSearchBoxAndIndicatorSpacing = 21;
 constexpr int kStartPageSearchBoxWidth = 480;
 constexpr int kStartPageSearchBoxWidthFullscreen = 544;
 
 // WebView constants.
 constexpr int kWebViewWidth = 700;
 constexpr int kWebViewHeight = 224;
 
-constexpr int kExpandArrowTopPadding = 28;
 constexpr int kLauncherPageBackgroundWidth = 400;
 
 }  // namespace
 
 class CustomLauncherPageBackgroundView : public views::View {
  public:
   explicit CustomLauncherPageBackgroundView(
       const std::string& custom_launcher_page_name)
       : selected_(false),
         custom_launcher_page_name_(custom_launcher_page_name) {
@@ skipping 49 matching lines @@
   AddChildView(instant_container_);
 
   if (is_fullscreen_app_list_enabled_) {
     indicator_ = new IndicatorChipView(
         l10n_util::GetStringUTF16(IDS_SUGGESTED_APPS_INDICATOR));
     AddChildView(indicator_);
   }
 
   // The view containing the start page tiles.
   AddChildView(suggestions_container_);
-  if (is_fullscreen_app_list_enabled_) {
-    expand_arrow_view_ = new ExpandArrowView(
-        app_list_main_view_->contents_view(), app_list_view);
-    AddChildView(expand_arrow_view_);
-  }
   AddChildView(custom_launcher_page_background_);
 
   suggestions_container_->SetResults(view_delegate_->GetModel()->results());
 }
 
 StartPageView::~StartPageView() = default;
 
 void StartPageView::InitInstantContainer() {
   views::BoxLayout* instant_layout_manager = new views::BoxLayout(
       views::BoxLayout::kVertical, gfx::Insets(), kInstantContainerSpacing);
@@ skipping 100 matching lines @@
     bounds.Inset(0, indicator_->GetPreferredSize().height(), 0, 0);
   }
   bounds.set_height(suggestions_container_->GetHeightForWidth(bounds.width()));
   if (is_fullscreen_app_list_enabled_) {
     bounds.Offset((bounds.width() - kGridTileWidth) / 2 -
                       (kGridTileWidth + kGridTileSpacing) * 2,
                   0);
   }
   suggestions_container_->SetBoundsRect(bounds);
 
-  if (expand_arrow_view_) {
-    gfx::Rect expand_arrow_rect(GetContentsBounds());
-    int left_right_padding =
-        (bounds.width() - expand_arrow_view_->GetPreferredSize().width()) / 2;
-
-    expand_arrow_rect.Inset(left_right_padding, 0, left_right_padding, 0);
-    expand_arrow_rect.set_y(bounds.bottom() + kExpandArrowTopPadding);
-    expand_arrow_rect.set_height(
-        expand_arrow_view_->GetPreferredSize().height());
-    expand_arrow_view_->SetBoundsRect(expand_arrow_rect);
-  }
-
   CustomLauncherPageView* custom_launcher_page_view =
       app_list_main_view_->contents_view()->custom_page_view();
   if (!custom_launcher_page_view)
     return;
 
   bounds = app_list_main_view_->contents_view()
                ->custom_page_view()
                ->GetCollapsedLauncherPageBounds();
   bounds.Intersect(GetContentsBounds());
   bounds.ClampToCenteredSize(
@@ skipping 126 matching lines @@
   // is enabled).
   if (event->type() == ui::ET_SCROLL && event->y_offset() < 0)
     MaybeOpenCustomLauncherPage();
 }
 
 TileItemView* StartPageView::GetTileItemView(size_t index) {
   return suggestions_container_->GetTileItemView(index);
 }
 
 }  // namespace app_list