Remove some legacy versions of StartsWith and EndsWith.

chrome/browser/extensions/updater/local_extension_cache.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 "chrome/browser/extensions/updater/local_extension_cache.h"
 
 #include "base/bind.h"
 #include "base/files/file_enumerator.h"
 #include "base/files/file_util.h"
 #include "base/sequenced_task_runner.h"
@@ skipping 403 matching lines @@
     // Skip flag file that indicates that cache is ready.
     if (basename == kCacheReadyFlagFileName)
       continue;
 
     // crx files in the cache are named
     // <extension-id>-<version>[-<expected_hash>].crx.
     std::string id;
     std::string version;
     std::string expected_hash;
     if (base::EndsWith(basename, kCRXFileExtension,
-                       false /* case-sensitive */)) {
+                       base::CompareCase::INSENSITIVE_ASCII)) {
       size_t n = basename.find('-');
       if (n != std::string::npos && n + 1 < basename.size() - 4) {
         id = basename.substr(0, n);
         // Size of |version| = total size - "<id>" - "-" - ".crx"
         version = basename.substr(n + 1, basename.size() - 5 - id.size());
 
         n = version.find('-');
         if (n != std::string::npos && n + 1 < version.size()) {
           expected_hash = version.substr(n + 1, version.size() - n - 1);
           version.resize(n);
@@ skipping 180 matching lines @@
       expected_hash(base::StringToLowerASCII(expected_hash)),
       last_used(last_used),
       size(size),
       file_path(file_path) {
 }
 
 LocalExtensionCache::CacheItemInfo::~CacheItemInfo() {
 }
 
 }  // namespace extensions