Remove legacy StartsWithASCII function.

ash/wm/lock_state_controller.cc

 // Copyright 2013 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 "ash/wm/lock_state_controller.h"
 
 #include <algorithm>
 #include <string>
 
 #include "ash/accessibility_delegate.h"
@@ skipping 475 matching lines @@
         UMA_ACCEL_LOCK_SCREEN_LOCK_BUTTON);
     delegate_->RequestLockScreen();
   }
 
   base::TimeDelta timeout =
       base::TimeDelta::FromMilliseconds(kLockFailTimeoutMs);
 #if defined(OS_CHROMEOS)
   // Increase lock timeout for slower hardware, see http://crbug.com/350628
   const std::string board = base::SysInfo::GetLsbReleaseBoard();
   if (board == "x86-mario" ||
-      base::StartsWithASCII(board, "x86-alex", true /* case_sensitive */) ||
-      base::StartsWithASCII(board, "x86-zgb", true /* case_sensitive */) ||
-      base::StartsWithASCII(board, "daisy", true /* case_sensitive */)) {
+      base::StartsWith(board, "x86-alex", base::CompareCase::SENSITIVE) ||
+      base::StartsWith(board, "x86-zgb", base::CompareCase::SENSITIVE) ||
+      base::StartsWith(board, "daisy", base::CompareCase::SENSITIVE)) {
     timeout *= 2;
   }
 // Times out on ASAN bots.
 #if defined(MEMORY_SANITIZER) || defined(ADDRESS_SANITIZER)
   timeout *= 2;
 #endif
 #endif
   lock_fail_timer_.Start(
       FROM_HERE, timeout, this, &LockStateController::OnLockFailTimeout);
 }
@@ skipping 64 matching lines @@
   if (unlocked_properties_.get() &&
       unlocked_properties_->background_is_hidden) {
     animation_sequence->StartAnimation(
         SessionStateAnimator::DESKTOP_BACKGROUND,
         SessionStateAnimator::ANIMATION_FADE_OUT,
         speed);
   }
 }
 
 }  // namespace ash