Histogram for UMA log upload connection type.

components/metrics/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_METRICS_SERVICE_CLIENT_H_
 #define COMPONENTS_METRICS_METRICS_SERVICE_CLIENT_H_
 
 #include <stdint.h>
 #include <string>
 
@@ skipping 32 matching lines @@
   // Retrieves the brand code string associated with the install, returning
   // false if no brand code is available.
   virtual bool GetBrand(std::string* brand_code) = 0;
 
   // Returns the release channel (e.g. stable, beta, etc) of the application.
   virtual SystemProfileProto::Channel GetChannel() = 0;
 
   // Returns the version of the application as a string.
   virtual std::string GetVersionString() = 0;
 
-  // Called by the metrics service when a log has been uploaded.
-  virtual void OnLogUploadComplete() = 0;
+  // Called by the metrics service when a log has been uploaded, passing whether
+  // upload was successful.
+  virtual void OnLogUploadComplete(bool upload_succeeded) = 0;
 
   // Starts gathering metrics, calling |done_callback| when initial metrics
   // gathering is complete.
   virtual void StartGatheringMetrics(const base::Closure& done_callback) = 0;
 
   // Called prior to a metrics log being closed, allowing the client to collect
   // extra histograms that will go in that log. Asynchronous API - the client
   // implementation should call |done_callback| when complete.
   virtual void CollectFinalMetrics(const base::Closure& done_callback) = 0;
 
   // Creates a MetricsLogUploader with the specified parameters (see comments on
   // MetricsLogUploader for details).
   virtual scoped_ptr<MetricsLogUploader> CreateUploader(
       const base::Callback<void(int)>& on_upload_complete) = 0;
 
   // Returns the standard interval between upload attempts.
   virtual base::TimeDelta GetStandardUploadInterval() = 0;
 
   // Returns the name of a key under HKEY_CURRENT_USER that can be used to store
   // backups of metrics data. Unused except on Windows.
   virtual base::string16 GetRegistryBackupKey();
 };
 
 }  // namespace metrics
 
 #endif  // COMPONENTS_METRICS_METRICS_SERVICE_CLIENT_H_