Move MetricsService final log collection tasks to client.

components/metrics/test_metrics_service_client.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_METRICS_TEST_METRICS_SERVICE_CLIENT_H_
 #define COMPONENTS_METRICS_TEST_METRICS_SERVICE_CLIENT_H_
 
+#include <string>
+
 #include "components/metrics/metrics_service_client.h"
 
 namespace metrics {
 
 // A simple concrete implementation of the MetricsServiceClient interface, for
 // use in tests.
 class TestMetricsServiceClient : public MetricsServiceClient {
  public:
   TestMetricsServiceClient();
   virtual ~TestMetricsServiceClient();
 
   // MetricsServiceClient:
   virtual void SetClientID(const std::string& client_id) OVERRIDE;
   virtual bool IsOffTheRecordSessionActive() OVERRIDE;
   virtual std::string GetApplicationLocale() OVERRIDE;
   virtual bool GetBrand(std::string* brand_code) OVERRIDE;
   virtual SystemProfileProto::Channel GetChannel() OVERRIDE;
   virtual std::string GetVersionString() OVERRIDE;
+  virtual void OnFinalLogCollection(const base::Closure& done_callback)
+      OVERRIDE;
 
   const std::string& get_client_id() const { return client_id_; }
 
  private:
   std::string client_id_;
 };
 
 }  // namespace metrics
 
 #endif  // COMPONENTS_METRICS_TEST_METRICS_SERVICE_CLIENT_H_