Reset the app list when it is shown on Windows and Linux.

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"
 #include "base/files/file_path.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_util.h"
 #include "ui/app_list/app_list_constants.h"
 #include "ui/app_list/app_list_folder_item.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/pagination_model.h"
 #include "ui/app_list/search_box_model.h"
 #include "ui/app_list/views/app_list_item_view.h"
+#include "ui/app_list/views/apps_container_view.h"
 #include "ui/app_list/views/contents_switcher_view.h"
 #include "ui/app_list/views/contents_view.h"
 #include "ui/app_list/views/search_box_view.h"
 #include "ui/views/controls/textfield/textfield.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/widget/widget.h"
 
 namespace app_list {
 
 namespace {
@@ skipping 97 matching lines @@
 
   if (icon_loading_wait_timer_.IsRunning())
     return;
 
   icon_loading_wait_timer_.Start(
       FROM_HERE,
       base::TimeDelta::FromMilliseconds(kMaxIconLoadingWaitTimeInMs),
       this, &AppListMainView::OnIconLoadingWaitTimer);
 }
 
+void AppListMainView::ResetForShow() {
+  contents_view_->apps_container_view()->ResetForShowApps();
+  // We clear the search when hiding so when app list appears it is not showing
+  // search results.
+  search_box_view_->ClearSearch();
+}
+
 void AppListMainView::Close() {
   icon_loading_wait_timer_.Stop();
   contents_view_->CancelDrag();
 }
 
 void AppListMainView::Prerender() {
   contents_view_->Prerender();
 }
 
 void AppListMainView::ModelChanged() {
@@ skipping 97 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