Change ScopedPtrHashMap's 2nd template parameter

components/rappor/sampler.h

 // Copyright 2015 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_RAPPOR_SAMPLER_H_
 #define COMPONENTS_RAPPOR_SAMPLER_H_
 
 #include <map>
 #include <string>
 
@@ skipping 23 matching lines @@
 
   // Generate randomized reports for all stored samples and store them
   // in |reports|, then discard the samples.
   void ExportMetrics(const std::string& secret, RapporReports* reports);
 
  private:
   // The number of samples recorded for each metric since the last export.
   std::map<std::string, int> sample_counts_;
 
   // Stores a Sample for each metric, by metric name.
-  base::ScopedPtrHashMap<std::string, Sample> samples_;
+  base::ScopedPtrHashMap<std::string, scoped_ptr<Sample>> samples_;
 
   DISALLOW_COPY_AND_ASSIGN(Sampler);
 };
 
 }  // namespace internal
 
 }  // namespace rappor
 
 #endif  // COMPONENTS_RAPPOR_SAMPLER_H_