Fixed a header name error in UMA statistics that record what servers accept range requests.

content/browser/download/download_resource_handler.h

Index: content/browser/download/download_resource_handler.h
diff --git a/content/browser/download/download_resource_handler.h b/content/browser/download/download_resource_handler.h
index 15db6a27deeb73320eb0f1fcfb103928fb788597..666dec72a7060bc3ccadea5a721303a964dcebca 100644
--- a/content/browser/download/download_resource_handler.h
+++ b/content/browser/download/download_resource_handler.h
@@ -114,11 +114,14 @@ class DownloadResourceHandler : public ResourceHandler {
   ResourceDispatcherHost* rdh_;
   bool is_paused_;
   base::OneShotTimer<DownloadResourceHandler> pause_timer_;
-  base::TimeTicks download_start_time_;  // used to collect stats.
-  base::TimeTicks last_read_time_;        // used to collect stats.
-  size_t last_buffer_size_;               // used to collect stats.
-  int64 bytes_read_;                      // used to collect stats.
-  std::string accepts_ranges_;            // used to collect stats.
+
+  // The following are used to collect stats.
+  base::TimeTicks download_start_time_;
+  base::TimeTicks last_read_time_;
+  size_t last_buffer_size_;
+  int64 bytes_read_;
+  std::string accepts_ranges_;
+
   static const int kReadBufSize = 32768;  // bytes
   static const int kThrottleTimeMs = 200;  // milliseconds