Revert 164120 - content/browser: Move more files into the content namespace.

content/browser/system_message_window_win.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/browser/system_message_window_win.h"
 
 #include <dbt.h>
 #include <ks.h>
 #include <ksmedia.h>
 
 #include "base/logging.h"
 #include "base/system_monitor/system_monitor.h"
 #include "base/win/wrapped_window_proc.h"
 
-namespace content {
-
 namespace {
-
 const wchar_t kWindowClassName[] = L"Chrome_SystemMessageWindow";
 
 // A static map from a device category guid to base::SystemMonitor::DeviceType.
 struct {
   const GUID device_category;
   const base::SystemMonitor::DeviceType device_type;
 } const kDeviceCategoryMap[] = {
   { KSCATEGORY_AUDIO, base::SystemMonitor::DEVTYPE_AUDIO_CAPTURE },
   { KSCATEGORY_VIDEO, base::SystemMonitor::DEVTYPE_VIDEO_CAPTURE },
 };
-
 }  // namespace
 
 // Manages the device notification handles for SystemMessageWindowWin.
 class SystemMessageWindowWin::DeviceNotifications {
  public:
   explicit DeviceNotifications(HWND hwnd) : notifications_() {
     Register(hwnd);
   }
 
   ~DeviceNotifications() {
@@ skipping 106 matching lines @@
                                                  WPARAM wparam, LPARAM lparam) {
   switch (message) {
     case WM_DEVICECHANGE:
       return OnDeviceChange(static_cast<UINT>(wparam), lparam);
     default:
       break;
   }
 
   return ::DefWindowProc(hwnd, message, wparam, lparam);
 }
-
-}  // namespace content