Updating system_wrappers/include/metrics.h docs

webrtc/system_wrappers/include/metrics.h

 //
 // Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 //
 // Use of this source code is governed by a BSD-style license
 // that can be found in the LICENSE file in the root of the source
 // tree. An additional intellectual property rights grant can be found
 // in the file PATENTS.  All contributing project authors may
 // be found in the AUTHORS file in the root of the source tree.
 //
 
@@ skipping 26 matching lines @@
 // - provide implementations of
 //   Histogram* webrtc::metrics::HistogramFactoryGetCounts(
 //       const std::string& name, int sample, int min, int max,
 //       int bucket_count);
 //   Histogram* webrtc::metrics::HistogramFactoryGetEnumeration(
 //       const std::string& name, int sample, int boundary);
 //   void webrtc::metrics::HistogramAdd(
 //       Histogram* histogram_pointer, const std::string& name, int sample);
 //
 // - or link with the default implementations (i.e.
-//   system_wrappers/system_wrappers.gyp:metrics_default).
+//   system_wrappers:metrics_default).
 //
 //
 // Example usage:
 //
 // RTC_HISTOGRAM_COUNTS("WebRTC.Video.NacksSent", nacks_sent, 1, 100000, 100);
 //
 // enum Types {
 //   kTypeX,
 //   kTypeY,
 //   kBoundary,
@@ skipping 177 matching lines @@
 // Returns name of the histogram.
 const std::string& GetHistogramName(Histogram* histogram_pointer);
 
 // Function for adding a |sample| to a histogram.
 void HistogramAdd(Histogram* histogram_pointer, int sample);
 
 }  // namespace metrics
 }  // namespace webrtc
 
 #endif  // WEBRTC_SYSTEM_WRAPPERS_INCLUDE_METRICS_H_
-