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

tools/gn/trace.cc

 // Copyright (c) 2013 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 "tools/gn/trace.h"
 
 #include <algorithm>
 #include <map>
 #include <sstream>
 #include <vector>
@@ skipping 105 matching lines @@
       thread_id_(thread_id) {
 }
 
 TraceItem::~TraceItem() {
 }
 
 ScopedTrace::ScopedTrace(TraceItem::Type t, const std::string& name)
     : item_(nullptr), done_(false) {
   if (trace_log) {
     item_ = new TraceItem(t, name, base::PlatformThread::CurrentId());
-    item_->set_begin(base::TimeTicks::HighResNow());
+    item_->set_begin(base::TimeTicks::Now());
   }
 }
 
 ScopedTrace::ScopedTrace(TraceItem::Type t, const Label& label)
     : item_(nullptr), done_(false) {
   if (trace_log) {
     item_ = new TraceItem(t, label.GetUserVisibleName(false),
                           base::PlatformThread::CurrentId());
-    item_->set_begin(base::TimeTicks::HighResNow());
+    item_->set_begin(base::TimeTicks::Now());
   }
 }
 
 ScopedTrace::~ScopedTrace() {
   Done();
 }
 
 void ScopedTrace::SetToolchain(const Label& label) {
   if (item_)
     item_->set_toolchain(label.GetUserVisibleName(false));
 }
 
 void ScopedTrace::SetCommandLine(const base::CommandLine& cmdline) {
   if (item_)
     item_->set_cmdline(FilePathToUTF8(cmdline.GetArgumentsString()));
 }
 
 void ScopedTrace::Done() {
   if (!done_) {
     done_ = true;
     if (trace_log) {
-      item_->set_end(base::TimeTicks::HighResNow());
+      item_->set_end(base::TimeTicks::Now());
       AddTrace(item_);
     }
   }
 }
 
 void EnableTracing() {
   if (!trace_log)
     trace_log = new TraceLog;
 }
 
@@ skipping 142 matching lines @@
     }
     out << "}";
   }
 
   out << "]}";
 
   std::string out_str = out.str();
   base::WriteFile(file_name, out_str.data(),
                        static_cast<int>(out_str.size()));
 }