Switch gfx::Range to use uint32_t instead of size_t.

ui/app_list/search_result.h

 // 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.
 
 #ifndef UI_APP_LIST_SEARCH_RESULT_H_
 #define UI_APP_LIST_SEARCH_RESULT_H_
 
 #include <stddef.h>
 
 #include <string>
@@ skipping 39 matching lines @@
     // mutually exclusive.
     enum Style {
       NONE  = 0,
       URL   = 1 << 0,
       MATCH = 1 << 1,
       DIM   = 1 << 2,
     };
 
     Tag(int styles, size_t start, size_t end)
         : styles(styles),
-          range(start, end) {
-    }
+          range(static_cast<uint32_t>(start), static_cast<uint32_t>(end)) {}
 
     int styles;
     gfx::Range range;
   };
   typedef std::vector<Tag> Tags;
 
   // Data representing an action that can be performed on this search result.
   // An action could be represented as an icon set or as a blue button with
   // a label. Icon set is chosen if label text is empty. Otherwise, a blue
   // button with the label text will be used.
@@ skipping 130 matching lines @@
   int percent_downloaded_;
 
   base::ObserverList<SearchResultObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchResult);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_SEARCH_RESULT_H_