Make callers of CommandLine use it via the base:: namespace.

tools/gn/scheduler.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/scheduler.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/strings/string_number_conversions.h"
 #include "tools/gn/standard_out.h"
 #include "tools/gn/switches.h"
 
 Scheduler* g_scheduler = NULL;
 
 namespace {
 
 int GetThreadCount() {
   std::string thread_count =
-      CommandLine::ForCurrentProcess()->GetSwitchValueASCII(switches::kThreads);
+      base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
+          switches::kThreads);
 
   int result;
   if (thread_count.empty() || !base::StringToInt(thread_count, &result))
     return 32;
   return result;
 }
 
 }  // namespace
 
 Scheduler::Scheduler()
@@ skipping 107 matching lines @@
 void Scheduler::DoWork(const base::Closure& closure) {
   closure.Run();
   DecrementWorkCount();
 }
 
 void Scheduler::OnComplete() {
   // Should be called on the main thread.
   DCHECK(base::MessageLoop::current() == main_loop());
   runner_.Quit();
 }