Remove legacy StartsWithASCII function.

ui/events/devices/device_util_linux.cc

 // Copyright 2014 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 "ui/events/devices/device_util_linux.h"
 
 #include <string>
 
 #include "base/files/file_enumerator.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_util.h"
 
 namespace ui {
 
 InputDeviceType GetInputDeviceTypeFromPath(const base::FilePath& path) {
   DCHECK(!base::MessageLoopForUI::IsCurrent());
   std::string event_node = path.BaseName().value();
-  if (event_node.empty() || !base::StartsWithASCII(event_node, "event", false))
+  if (event_node.empty() ||
+      !base::StartsWith(event_node, "event",
+                        base::CompareCase::INSENSITIVE_ASCII))
     return InputDeviceType::INPUT_DEVICE_UNKNOWN;
 
   // Find sysfs device path for this device.
   base::FilePath sysfs_path =
       base::FilePath(FILE_PATH_LITERAL("/sys/class/input"));
   sysfs_path = sysfs_path.Append(path.BaseName());
   sysfs_path = base::MakeAbsoluteFilePath(sysfs_path);
 
   // Device does not exist.
   if (sysfs_path.empty())
@@ skipping 29 matching lines @@
     if (subsystem_path == "/sys/bus/usb")
       return InputDeviceType::INPUT_DEVICE_EXTERNAL;
     if (subsystem_path == "/sys/class/bluetooth")
       return InputDeviceType::INPUT_DEVICE_EXTERNAL;
   }
 
   return InputDeviceType::INPUT_DEVICE_UNKNOWN;
 }
 
 }  // namespace