Use base::StartWith() in more places when appropriate.

chrome/browser/chromeos/extensions/device_local_account_management_policy_provider.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 "chrome/browser/chromeos/extensions/device_local_account_management_policy_provider.h"
 
 #include <stddef.h>
 
 #include <cstddef>
 #include <string>
 
 #include "base/logging.h"
+#include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/grit/generated_resources.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/manifest.h"
 #include "extensions/common/manifest_constants.h"
 #include "ui/base/l10n/l10n_util.h"
 
 namespace chromeos {
 
@@ skipping 458 matching lines @@
                      << " contains a token that's neither a string nor a dict.";
           safe = false;
           continue;
         }
         // Accept whitelisted permissions.
         if (ArrayContains(kSafePermissionStrings, permission_string)) {
           continue;
         }
         // Allow arbitrary web requests.  Don't include <all_urls> because that
         // also matches file:// schemes.
-        if (permission_string.find("https://") == 0 ||
-            permission_string.find("http://") == 0 ||
-            permission_string.find("ftp://") == 0) {
+        if (base::StartsWith(permission_string, "https://",
+                             base::CompareCase::SENSITIVE) ||
+            base::StartsWith(permission_string, "http://",
+                             base::CompareCase::SENSITIVE) ||
+            base::StartsWith(permission_string, "ftp://",
+                             base::CompareCase::SENSITIVE)) {
           continue;
         }
         LOG(ERROR) << extension->id()
                    << " requested non-whitelisted permission: "
                    << permission_string;
         safe = false;
       }
     // "app" may only contain "background".
     } else if (it.key() == emk::kApp) {
       const base::DictionaryValue *dict_value;
@@ skipping 109 matching lines @@
   if (error) {
     *error = l10n_util::GetStringFUTF16(
           IDS_EXTENSION_CANT_INSTALL_IN_DEVICE_LOCAL_ACCOUNT,
           base::UTF8ToUTF16(extension->name()),
           base::UTF8ToUTF16(extension->id()));
   }
   return false;
 }
 
 }  // namespace chromeos