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

content/plugin/plugin_channel.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/plugin/plugin_channel.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/process_util.h"
 #include "base/string_util.h"
 #include "base/synchronization/lock.h"
 #include "base/synchronization/waitable_event.h"
 #include "build/build_config.h"
 #include "content/common/child_process.h"
 #include "content/common/plugin_messages.h"
 #include "content/public/common/content_switches.h"
 #include "content/plugin/plugin_thread.h"
 #include "content/plugin/webplugin_delegate_stub.h"
 #include "content/plugin/webplugin_proxy.h"
 #include "webkit/plugins/npapi/plugin_instance.h"
 
 #if defined(OS_POSIX)
 #include "base/eintr_wrapper.h"
 #include "ipc/ipc_channel_posix.h"
 #endif
 
+namespace content {
+
 namespace {
 
 void PluginReleaseCallback() {
   ChildProcess::current()->ReleaseProcess();
 }
 
 // How long we wait before releasing the plugin process.
 const int kPluginReleaseTimeMinutes = 5;
 
 }  // namespace
@@ skipping 272 matching lines @@
       std::string site_name =
           site.empty() ? "NULL"
                        : base::StringPrintf("\"%s\"", site_str);
       VLOG(1) << "NPP_ClearSiteData(" << site_name << ", " << flags << ", "
               << max_age << ") returned " << err;
       success = (err == NPERR_NO_ERROR);
     }
   }
   Send(new PluginHostMsg_ClearSiteDataResult(success));
 }
+
+}  // namespace content