Make callers of CommandLine use it via the base:: namespace.

content/zygote/zygote_main_linux.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/zygote/zygote_main.h"
 
 #include <dlfcn.h>
 #include <fcntl.h>
 #include <pthread.h>
 #include <signal.h>
@@ skipping 433 matching lines @@
   // startup and the point where we set the non-dumpable flag in which a
   // compromised renderer could ptrace attach.
   //
   // However, now that we have a zygote model, only the (trusted) zygote
   // exists at this point and we can set the non-dumpable flag which is
   // inherited by all our renderer children.
   //
   // Note: a non-dumpable process can't be debugged. To debug sandbox-related
   // issues, one can specify --allow-sandbox-debugging to let the process be
   // dumpable.
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+  const base::CommandLine& command_line =
+      *base::CommandLine::ForCurrentProcess();
   if (!command_line.HasSwitch(switches::kAllowSandboxDebugging)) {
     prctl(PR_SET_DUMPABLE, 0, 0, 0, 0);
     if (prctl(PR_GET_DUMPABLE, 0, 0, 0, 0)) {
       LOG(ERROR) << "Failed to set non-dumpable flag";
       return false;
     }
   } else {
     // If sandbox debugging is allowed, install a handler for sandbox-related
     // crash testing.
     InstallSandboxCrashTestHandler();
@@ skipping 170 matching lines @@
   bool setuid_sandbox_engaged = sandbox_flags & kSandboxLinuxSUID;
   CHECK_EQ(must_enable_setuid_sandbox, setuid_sandbox_engaged);
 
   Zygote zygote(sandbox_flags, fork_delegates.Pass(), extra_children,
                 extra_fds);
   // This function call can return multiple times, once per fork().
   return zygote.ProcessRequests();
 }
 
 }  // namespace content