Remove legacy StartsWithASCII function.

components/favicon/core/favicon_driver_impl.cc

 // Copyright 2015 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 "components/favicon/core/favicon_driver_impl.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string_util.h"
@@ skipping 12 matching lines @@
 bool IsIconNTPEnabled() {
   // Note: It's important to query the field trial state first, to ensure that
   // UMA reports the correct group.
   const std::string group_name = base::FieldTrialList::FindFullName("IconNTP");
   using base::CommandLine;
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisableIconNtp))
     return false;
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnableIconNtp))
     return true;
 
-  return base::StartsWithASCII(group_name, "Enabled", true);
+  return base::StartsWith(group_name, "Enabled", base::CompareCase::SENSITIVE);
 }
 
 #if defined(OS_ANDROID) || defined(OS_IOS)
 const bool kEnableTouchIcon = true;
 #else
 const bool kEnableTouchIcon = false;
 #endif
 
 }  // namespace
 
@@ skipping 125 matching lines @@
     const std::vector<FaviconURL>& candidates) {
   DCHECK(!candidates.empty());
   favicon_handler_->OnUpdateFaviconURL(candidates);
   if (touch_icon_handler_.get())
     touch_icon_handler_->OnUpdateFaviconURL(candidates);
   if (large_icon_handler_.get())
     large_icon_handler_->OnUpdateFaviconURL(candidates);
 }
 
 }  // namespace favicon