Move a bunch of code in content\common (as well as a few left in renderer) to the content namespace.

content/common/child_process.cc

 // Copyright (c) 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 "content/common/child_process.h"
 
 #if defined(OS_POSIX) && !defined(OS_ANDROID)
 #include <signal.h>  // For SigUSR1Handler below.
 #endif
 
 #include "base/message_loop.h"
 #include "base/metrics/statistics_recorder.h"
 #include "base/process_util.h"
 #include "base/string_number_conversions.h"
 #include "base/threading/thread.h"
 #include "base/utf_string_conversions.h"
 #include "content/common/child_thread.h"
 
 #if defined(OS_ANDROID)
 #include "base/debug/debugger.h"
 #endif
 
 #if defined(OS_POSIX) && !defined(OS_ANDROID)
 static void SigUSR1Handler(int signal) { }
 #endif
 
+namespace content {
+
 ChildProcess* ChildProcess::child_process_;
 
 ChildProcess::ChildProcess()
     : ref_count_(0),
       shutdown_event_(true, false),
       io_thread_("Chrome_ChildIOThread") {
   DCHECK(!child_process_);
   child_process_ = this;
 
   base::StatisticsRecorder::Initialize();
@@ skipping 80 matching lines @@
   // Install a signal handler so that pause can be woken.
   struct sigaction sa;
   memset(&sa, 0, sizeof(sa));
   sa.sa_handler = SigUSR1Handler;
   sigaction(SIGUSR1, &sa, NULL);
 
   pause();
 #endif  // defined(OS_ANDROID)
 #endif  // defined(OS_POSIX)
 }
+
+}  // namespace content