[AppList] Add a Suggestions Provider to applist.

chrome/browser/ui/app_list/search/search_util.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_APP_LIST_SEARCH_SEARCH_UTIL_H_
 #define CHROME_BROWSER_UI_APP_LIST_SEARCH_SEARCH_UTIL_H_
 
 namespace app_list {
 
 // The type of the chrome search result. This is used for logging so do not
 // change the order of this enum.
 enum SearchResultType {
   // A result that forwards an omnibox search result.
   OMNIBOX_SEARCH_RESULT,
   // An app result.
   APP_SEARCH_RESULT,
   // A search result from the webstore.
   WEBSTORE_SEARCH_RESULT,
   // A result that opens a webstore search.
   SEARCH_WEBSTORE_SEARCH_RESULT,
   // A result that opens a people search.
   SEARCH_PEOPLE_SEARCH_RESULT,
+  // A result that opens a suggestion.
+  SUGGESTIONS_SEARCH_RESULT,
+  // Boundary is always last.
   SEARCH_RESULT_TYPE_BOUNDARY
 };
 
 // Record a UMA histogram.
 void RecordHistogram(SearchResultType type);
 
 }  // namespace app_list
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_SEARCH_SEARCH_UTIL_H_