Clear Search results in the Mac app launcher on close, rather than launch.

ui/app_list/cocoa/app_list_view_controller.h

 // 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.
 
 #ifndef UI_APP_LIST_COCOA_APP_LIST_VIEW_CONTROLLER_H_
 #define UI_APP_LIST_COCOA_APP_LIST_VIEW_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/scoped_nsobject.h"
@@ skipping 33 matching lines @@
 
   // Subview of |backgroundView_| that slides out when search results are shown.
   base::scoped_nsobject<NSView> contentsView_;
 
   scoped_ptr<app_list::AppListViewDelegate> delegate_;
   scoped_ptr<app_list::AppListModelObserverBridge>
       app_list_model_observer_bridge_;
   BOOL showingSearchResults_;
 }
 
+@property(readonly, nonatomic) AppsSearchBoxController*
+    searchBoxController;
+
 - (app_list::AppListViewDelegate*)delegate;
 - (void)setDelegate:(scoped_ptr<app_list::AppListViewDelegate>)newDelegate;
 - (void)onSigninStatusChanged;
 
 @end
 
 @interface AppListViewController (TestingAPI)
 
+@property(nonatomic, readonly) BOOL showingSearchResults;
+
 - (AppsGridController*)appsGridController;
 - (NSSegmentedControl*)pagerControl;
 - (NSView*)backgroundView;
 
 @end
 
 #endif  // UI_APP_LIST_COCOA_APP_LIST_VIEW_CONTROLLER_H_