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

tools/android/forwarder2/host_forwarder_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 <errno.h>
 #include <signal.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
 
@@ skipping 388 matching lines @@
   // Note that 0 is a valid port (used for dynamic port allocation).
   if (!base::StringToInt(s, &value) || value < 0 ||
       value > std::numeric_limits<uint16>::max()) {
     LOG(ERROR) << "Could not convert string " << s << " to port";
     ExitWithUsage();
   }
   return value;
 }
 
 int RunHostForwarder(int argc, char** argv) {
-  CommandLine::Init(argc, argv);
-  const CommandLine& cmd_line = *CommandLine::ForCurrentProcess();
+  base::CommandLine::Init(argc, argv);
+  const base::CommandLine& cmd_line = *base::CommandLine::ForCurrentProcess();
   bool kill_server = false;
 
   Pickle pickle;
   pickle.WriteString(
       cmd_line.HasSwitch("serial-id") ?
           cmd_line.GetSwitchValueASCII("serial-id") : std::string());
 
   const std::vector<std::string> args = cmd_line.GetArgs();
   if (cmd_line.HasSwitch("kill-server")) {
     kill_server = true;
@@ skipping 27 matching lines @@
 
   return client_delegate.has_failed() || daemon_delegate.has_failed();
 }
 
 }  // namespace
 }  // namespace forwarder2
 
 int main(int argc, char** argv) {
   return forwarder2::RunHostForwarder(argc, argv);
 }