Move content's a plugin, ppapi_plugin, utility, and worker subdirectories to the content namespace.

content/ppapi_plugin/ppapi_plugin_main.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 "base/command_line.h"
 #include "base/debug/debugger.h"
 #include "base/i18n/rtl.h"
 #include "base/message_loop.h"
 #include "base/threading/platform_thread.h"
 #include "build/build_config.h"
@@ skipping 15 matching lines @@
 #if defined(OS_POSIX) && !defined(OS_ANDROID)
 #include <stdlib.h>
 #endif
 
 #if defined(OS_WIN)
 sandbox::TargetServices* g_target_services = NULL;
 #else
 void* g_target_services = 0;
 #endif
 
+namespace content {
+
 // Main function for starting the PPAPI plugin process.
-int PpapiPluginMain(const content::MainFunctionParams& parameters) {
+int PpapiPluginMain(const MainFunctionParams& parameters) {
   const CommandLine& command_line = parameters.command_line;
 
 #if defined(OS_WIN)
   g_target_services = parameters.sandbox_info->target_services;
 #endif
 
   // If |g_target_services| is not null this process is sandboxed. One side
   // effect is that we can't pop dialogs like ChildProcess::WaitForDebugger()
   // does.
   if (command_line.HasSwitch(switches::kPpapiStartupDialog)) {
@@ skipping 22 matching lines @@
     std::replace(locale.begin(), locale.end(), '-', '_');
     setlocale(LC_ALL, locale.c_str());
     setenv("LANG", locale.c_str(), 0);
 #endif
   }
 
   MessageLoop main_message_loop;
   base::PlatformThread::SetName("CrPPAPIMain");
 
 #if defined(OS_LINUX)
-  content::InitializeSandbox();
+  InitializeSandbox();
 #endif
 
   ChildProcess ppapi_process;
   ppapi_process.set_main_thread(
       new PpapiThread(parameters.command_line, false));  // Not a broker.
 
   main_message_loop.Run();
   return 0;
 }
+
+}  // namespace content