Replace scoped_ptr with std::unique_ptr in //ui

ui/app_list/search_box_model.h

Index: ui/app_list/search_box_model.h
diff --git a/ui/app_list/search_box_model.h b/ui/app_list/search_box_model.h
index a5a7a50ea374b9062aca02190c9526f6f5bf1763..2da22778985eb9c213a661df1610fa01f8967d9a 100644
--- a/ui/app_list/search_box_model.h
+++ b/ui/app_list/search_box_model.h
@@ -53,7 +53,7 @@ class APP_LIST_EXPORT SearchBoxModel {
 
   // Sets/gets the properties for the button of speech recognition.
   void SetSpeechRecognitionButton(
-      scoped_ptr<SpeechButtonProperty> speech_button);
+      std::unique_ptr<SpeechButtonProperty> speech_button);
   const SpeechButtonProperty* speech_button() const {
     return speech_button_.get();
   }
@@ -81,7 +81,7 @@ class APP_LIST_EXPORT SearchBoxModel {
 
  private:
   gfx::ImageSkia icon_;
-  scoped_ptr<SpeechButtonProperty> speech_button_;
+  std::unique_ptr<SpeechButtonProperty> speech_button_;
   base::string16 hint_text_;
   base::string16 accessible_name_;
   gfx::SelectionModel selection_model_;