Fix SpeechUIModel lifetime issue in Chrome's AppListViewDelegate when switching profiles

ash/shell/app_list.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 <string>
 #include <vector>
 
 #include "ash/session/session_state_delegate.h"
 #include "ash/shell.h"
 #include "ash/shell/example_factory.h"
@@ skipping 179 matching lines @@
 
  private:
   WindowTypeShelfItem::Type type_;
 
   DISALLOW_COPY_AND_ASSIGN(ExampleSearchResult);
 };
 
 class ExampleAppListViewDelegate : public app_list::AppListViewDelegate {
  public:
   ExampleAppListViewDelegate()
-      : model_(new app_list::AppListModel),
-        speech_ui_(app_list::SPEECH_RECOGNITION_OFF) {
+      : model_(new app_list::AppListModel) {
     PopulateApps();
     DecorateSearchBox(model_->search_box());
   }
 
  private:
   void PopulateApps() {
     for (int i = 0; i < static_cast<int>(WindowTypeShelfItem::LAST_TYPE); ++i) {
       WindowTypeShelfItem::Type type =
           static_cast<WindowTypeShelfItem::Type>(i);
       std::string id = base::StringPrintf("%d", i);
@@ skipping 158 matching lines @@
 };
 
 }  // namespace
 
 app_list::AppListViewDelegate* CreateAppListViewDelegate() {
   return new ExampleAppListViewDelegate;
 }
 
 }  // namespace shell
 }  // namespace ash