Use GetSwitchValueASCII.

chrome/browser/zygote_host_linux.cc

 // Copyright (c) 2009 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 "chrome/browser/zygote_host_linux.h"
 
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ skipping 69 matching lines @@
     cmd_line.PrependWrapper(prefix);
   }
   // Append any switches from the browser process that need to be forwarded on
   // to the zygote/renderers.
   // Should this list be obtained from browser_render_process_host.cc?
   if (browser_command_line.HasSwitch(switches::kAllowSandboxDebugging)) {
     cmd_line.AppendSwitch(switches::kAllowSandboxDebugging);
   }
   if (browser_command_line.HasSwitch(switches::kLoggingLevel)) {
     cmd_line.AppendSwitchWithValue(switches::kLoggingLevel,
-                                   browser_command_line.GetSwitchValue(
+                                   browser_command_line.GetSwitchValueASCII(
                                        switches::kLoggingLevel));
   }
   if (browser_command_line.HasSwitch(switches::kEnableLogging)) {
     // Append with value to support --enable-logging=stderr.
     cmd_line.AppendSwitchWithValue(switches::kEnableLogging,
-                                   browser_command_line.GetSwitchValue(
+                                   browser_command_line.GetSwitchValueASCII(
                                        switches::kEnableLogging));
   }
   if (browser_command_line.HasSwitch(switches::kEnableSeccompSandbox)) {
     cmd_line.AppendSwitch(switches::kEnableSeccompSandbox);
   }
 
   const char* sandbox_binary = sandbox_cmd.c_str();
   struct stat st;
 
   bool using_suid_sandbox = false;
@@ skipping 140 matching lines @@
       !read_pickle.ReadBool(&iter, &tmp_child_exited)) {
     LOG(WARNING) << "Error parsing DidProcessCrash response from zygote.";
     return false;
   }
 
   if (child_exited)
     *child_exited = tmp_child_exited;
 
   return did_crash;
 }