Remove legacy StartsWithASCII function.

content/browser/media/capture/web_contents_capture_util.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/browser/media/capture/web_contents_capture_util.h"
 
 #include "base/basictypes.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_piece.h"
 #include "base/strings/string_util.h"
 
 namespace content {
 
 bool WebContentsCaptureUtil::IsWebContentsDeviceId(
     const std::string& device_id) {
   int ignored;
   return ExtractTabCaptureTarget(device_id, &ignored, &ignored);
 }
 
 bool WebContentsCaptureUtil::ExtractTabCaptureTarget(
     const std::string& device_id_param,
     int* render_process_id,
     int* main_render_frame_id) {
   static const char kDeviceScheme[] = "web-contents-media-stream://";
-  if (!base::StartsWithASCII(device_id_param, kDeviceScheme, true))
+  if (!base::StartsWith(device_id_param, kDeviceScheme,
+                        base::CompareCase::SENSITIVE))
     return false;
 
   const std::string device_id = device_id_param.substr(
       arraysize(kDeviceScheme) - 1);
 
   const size_t sep_pos = device_id.find(':');
   if (sep_pos == std::string::npos)
     return false;
 
   const base::StringPiece component1(device_id.data(), sep_pos);
@@ skipping 18 matching lines @@
   const size_t option_pos = device_id.find('?');
   if (option_pos == std::string::npos)
     return false;
   const base::StringPiece component(device_id.data() + option_pos,
                                     device_id.length() - option_pos);
   static const char kEnableFlag[] = "?throttling=auto";
   return component.compare(kEnableFlag) == 0;
 }
 
 }  // namespace content