Move CommandLine to base namespace.

base/process/launch.h

 // Copyright 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.
 
 // This file contains functions for launching subprocesses.
 
 #ifndef BASE_PROCESS_LAUNCH_H_
 #define BASE_PROCESS_LAUNCH_H_
 
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/base_export.h"
 #include "base/basictypes.h"
 #include "base/environment.h"
 #include "base/process/process_handle.h"
 #include "base/strings/string_piece.h"
 
 #if defined(OS_POSIX)
 #include "base/posix/file_descriptor_shuffle.h"
 #elif defined(OS_WIN)
 #include <windows.h>
 #include "base/win/scoped_handle.h"
 #endif
 
+namespace base {
+
 class CommandLine;
 
-namespace base {
-
 #if defined(OS_WIN)
 typedef std::vector<HANDLE> HandlesToInheritVector;
 #endif
 // TODO(viettrungluu): Only define this on POSIX?
 typedef std::vector<std::pair<int, int> > FileHandleMappingVector;
 
 // Options for launching a subprocess that are passed to LaunchProcess().
 // The default constructor constructs the object with default options.
 struct BASE_EXPORT LaunchOptions {
   LaunchOptions();
@@ skipping 198 matching lines @@
 // instance running inside the parent.  The parent's Breakpad instance should
 // not handle the child's exceptions.  Calling RestoreDefaultExceptionHandler
 // in the child after forking will restore the standard exception handler.
 // See http://crbug.com/20371/ for more details.
 void RestoreDefaultExceptionHandler();
 #endif  // defined(OS_MACOSX)
 
 }  // namespace base
 
 #endif  // BASE_PROCESS_LAUNCH_H_