Make callers of CommandLine use it via the base:: 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/base_paths.h"
 #include "base/command_line.h"
 #include "base/debug/debugger.h"
 #include "base/files/file_path.h"
 #include "base/i18n/rtl.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 45 matching lines @@
 void SkiaPreCacheFont(const LOGFONT& logfont) {
   ppapi::proxy::PluginGlobals::Get()->PreCacheFontForFlash(
       reinterpret_cast<const void*>(&logfont));
 }
 #endif
 
 }  // namespace
 
 // Main function for starting the PPAPI plugin process.
 int PpapiPluginMain(const MainFunctionParams& parameters) {
-  const CommandLine& command_line = parameters.command_line;
+  const base::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)) {
     if (g_target_services)
@@ skipping 59 matching lines @@
 
 #if defined(OS_WIN)
   SkTypeface_SetEnsureLOGFONTAccessibleProc(SkiaPreCacheFont);
 #endif
 
   main_message_loop.Run();
   return 0;
 }
 
 }  // namespace content