Remove legacy StartsWithASCII function.

content/child/npapi/plugin_host.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/child/npapi/plugin_host.h"
 
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
@@ skipping 446 matching lines @@
     // A malicious (non-sandboxed) plugin has unfeterred access to OS
     // resources and can do this anyway without using browser's HTTP stack.
     // FWIW, Firefox and Safari don't perform any security checks.
 
     if (!buf)
       return NPERR_FILE_NOT_FOUND;
 
     std::string file_path_ascii(buf);
     base::FilePath file_path;
     static const char kFileUrlPrefix[] = "file:";
-    if (base::StartsWithASCII(file_path_ascii, kFileUrlPrefix, false)) {
+    if (base::StartsWith(file_path_ascii, kFileUrlPrefix,
+                         base::CompareCase::INSENSITIVE_ASCII)) {
       GURL file_url(file_path_ascii);
       DCHECK(file_url.SchemeIsFile());
       net::FileURLToFilePath(file_url, &file_path);
     } else {
       file_path = base::FilePath::FromUTF8Unsafe(file_path_ascii);
     }
 
     base::File::Info post_file_info;
     if (!base::GetFileInfo(file_path, &post_file_info) ||
         post_file_info.is_directory)
@@ skipping 619 matching lines @@
 }
 
 void NPN_URLRedirectResponse(NPP instance, void* notify_data, NPBool allow) {
   scoped_refptr<PluginInstance> plugin(FindInstance(instance));
   if (plugin.get()) {
     plugin->URLRedirectResponse(!!allow, notify_data);
   }
 }
 
 }  // extern "C"