Change ScopedPtr(Hash)Map to make qualified calls to ignore_result().

base/containers/scoped_ptr_hash_map.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 BASE_CONTAINERS_SCOPED_PTR_HASH_MAP_H_
 #define BASE_CONTAINERS_SCOPED_PTR_HASH_MAP_H_
 
 #include <algorithm>
 #include <utility>
 
@@ skipping 39 matching lines @@
     }
 
     return data_.insert(std::make_pair(key, data.release())).first;
   }
 
   // Does nothing if key is already present
   std::pair<iterator, bool> add(const Key& key, ScopedPtr data) {
     std::pair<iterator, bool> result =
         data_.insert(std::make_pair(key, data.get()));
     if (result.second)
-      ignore_result(data.release());
+      ::ignore_result(data.release());
     return result;
   }
 
   void erase(iterator it) {
     // Let ScopedPtr decide how to delete.
     ScopedPtr(it->second).reset();
     data_.erase(it);
   }
 
   size_t erase(const Key& k) {
@@ skipping 92 matching lines @@
 
  private:
   Container data_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedPtrHashMap);
 };
 
 }  // namespace base
 
 #endif  // BASE_CONTAINERS_SCOPED_PTR_HASH_MAP_H_