Change to Hi Res timers on Windows....

base/trace_event.cc

 // Copyright (c) 2006-2008 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 "base/trace_event.h"
 
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/platform_thread.h"
 #include "base/process_util.h"
@@ skipping 118 matching lines @@
 void TraceLog::Trace(const std::string& name, 
                      EventType type,
                      const void* id,
                      const std::string& extra,
                      const char* file, 
                      int line) {
   if (!enabled_)
     return;
 
 #ifdef USE_UNRELIABLE_NOW
-  TimeTicks tick = TimeTicks::UnreliableHighResNow();
+  TimeTicks tick = TimeTicks::HighResNow();
 #else
   TimeTicks tick = TimeTicks::Now();
 #endif
   TimeDelta delta = tick - trace_start_time_;
   int64 usec = delta.InMicroseconds();
   std::string msg = 
     StringPrintf("{'pid':'0x%lx', 'tid':'0x%lx', 'type':'%s', "
                  "'name':'%s', 'id':'0x%lx', 'extra':'%s', 'file':'%s', "
                  "'line_number':'%d', 'usec_begin': %I64d},\r\n", 
                  process_util::GetCurrentProcId(),
@@ skipping 16 matching lines @@
   SetFilePointer(log_file_, 0, 0, SEEK_END);
   DWORD num;
   WriteFile(log_file_, (void*)msg.c_str(), (DWORD)msg.length(), &num, NULL);
 #elif defined (OS_POSIX)
   fprintf(log_file_, "%s", msg.c_str());
 #endif
 }
 
 } // namespace base