Histogram for UMA log upload connection type.

chrome/browser/metrics/chrome_metrics_service_client.h

Index: chrome/browser/metrics/chrome_metrics_service_client.h
diff --git a/chrome/browser/metrics/chrome_metrics_service_client.h b/chrome/browser/metrics/chrome_metrics_service_client.h
index c2f1c6e8bb2635ac94eec52cdf81e7998415d383..766c9e1271424d379986095091114a3d043349f3 100644
--- a/chrome/browser/metrics/chrome_metrics_service_client.h
+++ b/chrome/browser/metrics/chrome_metrics_service_client.h
@@ -15,6 +15,7 @@
 #include "chrome/browser/metrics/metrics_memory_details.h"
 #include "chrome/browser/metrics/network_stats_uploader.h"
 #include "components/metrics/metrics_service_client.h"
+#include "components/metrics/net/network_metrics_provider.h"
 #include "components/metrics/profiler/tracking_synchronizer_observer.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
@@ -63,7 +64,7 @@ class ChromeMetricsServiceClient
   bool GetBrand(std::string* brand_code) override;
   metrics::SystemProfileProto::Channel GetChannel() override;
   std::string GetVersionString() override;
-  void OnLogUploadComplete() override;
+  void OnLogUploadComplete(bool upload_succeeded) override;
   void StartGatheringMetrics(const base::Closure& done_callback) override;
   void CollectFinalMetrics(const base::Closure& done_callback) override;
   scoped_ptr<metrics::MetricsLogUploader> CreateUploader(
@@ -138,6 +139,11 @@ class ChromeMetricsServiceClient
   // that has been registered with MetricsService. On other platforms, is NULL.
   ChromeOSMetricsProvider* chromeos_metrics_provider_;
 
+  // The network metrics provider that was registered with MetricsService.
+  // Stored for determining network connection type. Has the same lifetime as
+  // |metrics_service_|.
+  metrics::NetworkMetricsProvider* network_metrics_provider_;
+
   NetworkStatsUploader network_stats_uploader_;
 
   // Saved callback received from CollectFinalMetrics().
@@ -172,10 +178,6 @@ class ChromeMetricsServiceClient
   // MemoryDetails.
   MemoryGrowthTracker memory_growth_tracker_;
 
-  // Callback to determine whether or not a cellular network is currently being
-  // used.
-  base::Callback<void(bool*)> cellular_callback_;
-
   base::WeakPtrFactory<ChromeMetricsServiceClient> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeMetricsServiceClient);