Switching to C++11 range-based for loops

components/copresence/timed_map.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 COMPONENTS_COPRESENCE_TIMED_MAP_H_
 #define COMPONENTS_COPRESENCE_TIMED_MAP_H_
 
 #include <map>
 #include <queue>
 #include <utility>
@@ skipping 30 matching lines @@
       ClearOldestToken();
   }
 
   bool HasKey(const KeyType& key) {
     ClearExpiredTokens();
     return map_.find(key) != map_.end();
   }
 
   const ValueType& GetValue(const KeyType& key) {
     ClearExpiredTokens();
-    typename std::map<KeyType, ValueType>::const_iterator elt = map_.find(key);
+    auto elt = map_.find(key);
     return elt == map_.end() ? kEmptyValue : elt->second;
   }
 
   void set_clock_for_testing(scoped_ptr<base::TickClock> clock) {
     clock_ = clock.Pass();
   }
 
  private:
   void ClearExpiredTokens() {
     while (!expiry_queue_.empty() &&
@@ skipping 29 matching lines @@
   // Priority queue with our element keys ordered by the earliest expiring keys
   // first.
   ExpiryQueue expiry_queue_;
 
   DISALLOW_COPY_AND_ASSIGN(TimedMap);
 };
 
 }  // namespace copresence
 
 #endif  // COMPONENTS_COPRESENCE_TIMED_MAP_H_