Replaces instances of the deprecated TimeTicks::HighResNow() with TimeTicks::Now().

chrome/browser/net/network_stats.cc

 // Copyright 2012 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.
 
 #include "chrome/browser/net/network_stats.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/field_trial.h"
@@ skipping 399 matching lines @@
 }
 
 bool NetworkStats::UpdateReception(const ProbePacket& probe_packet) {
   uint32 packet_index = probe_packet.packet_index();
   if (packet_index >= packet_rtt_.size())
     return false;
   packets_received_mask_.set(packet_index);
   TestType test_type = test_sequence_[current_test_index_];
   uint32 received_packets = packets_received_mask_.count();
 
-  // Now() has resolution ~1-15ms. HighResNow() has high resolution but it
-  // is warned not to use it unless necessary.
   base::TimeTicks current_time = base::TimeTicks::Now();
   last_arrival_time_ = current_time;
   if (first_arrival_time_.is_null())
     first_arrival_time_ = current_time;
 
   // Need to do this after updating the last_arrival_time_ since NAT_BIND_TEST
   // and PACKET_SIZE_TEST record the SendToLastRecvDelay.
   if (test_type == NAT_BIND_TEST) {
     return received_packets >= maximum_NAT_packets_;
   }
@@ skipping 523 matching lines @@
   udp_stats_client->Start(host_resolver,
                           server_address,
                           histogram_port,
                           has_proxy_server,
                           kProbePacketBytes[probe_choice],
                           bytes_for_packet_size_test,
                           net::CompletionCallback());
 }
 
 }  // namespace chrome_browser_net