Continue with the FreeBSD port - this version builds and links, though...

chrome/browser/jankometer.cc

 // Copyright (c) 2009 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 <limits>
 
 #include "chrome/browser/jankometer.h"
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/histogram.h"
 #include "base/message_loop.h"
 #include "base/ref_counted.h"
 #include "base/stats_counters.h"
 #include "base/string_util.h"
 #include "base/thread.h"
 #include "base/time.h"
 #include "base/watchdog.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/common/chrome_switches.h"
 
-#if defined(OS_LINUX)
+#if defined(USE_X11)
 #include "chrome/common/gtk_util.h"
 #endif
 
 using base::TimeDelta;
 using base::TimeTicks;
 
 namespace {
 
 // The maximum threshold of delay of the message  before considering it a delay.
 // For a debug build, you may want to set IO delay around 500ms.
@@ skipping 133 matching lines @@
     DWORD cur_time = GetTickCount();
     queueing_time_ =
         base::TimeDelta::FromMilliseconds(cur_time - cur_message_issue_time);
 
     StartProcessingTimers();
   }
 
   virtual void DidProcessMessage(const MSG& msg) {
     EndProcessingTimers();
   }
-#elif defined(OS_LINUX)
+#elif defined(USE_X11)
   virtual void WillProcessEvent(GdkEvent* event) {
     begin_process_message_ = TimeTicks::Now();
     // TODO(evanm): we want to set queueing_time_ using
     // gdk_event_get_time, but how do you convert that info
     // into a delta?
     // guint event_time = gdk_event_get_time(event);
     queueing_time_ = base::TimeDelta::FromMilliseconds(0);
     StartProcessingTimers();
   }
 
@@ skipping 75 matching lines @@
     ui_observer->Release();
     ui_observer = NULL;
   }
   if (io_observer) {
     // IO thread can't be running when we remove observers.
     DCHECK((!g_browser_process) || !(g_browser_process->io_thread()));
     io_observer->Release();
     io_observer = NULL;
   }
 }