Use JSON schema compiler for i18n api

chrome/browser/extensions/extension_i18n_api.cc

-// Copyright (c) 2012 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/extension_i18n_api.h"
-
-#include "base/string_piece.h"
-#include "base/utf_string_conversions.h"
-#include "chrome/browser/prefs/pref_service.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/common/pref_names.h"
-
-// Errors.
-static const char kEmptyAcceptLanguagesError[] = "accept-languages is empty.";
-
-bool GetAcceptLanguagesFunction::RunImpl() {
-  string16 acceptLanguages =
-      UTF8ToUTF16(profile()->GetPrefs()->GetString(prefs::kAcceptLanguages));
-  // Currently, there are 2 ways to set browser's accept-languages: through UI
-  // or directly modify the preference file. The accept-languages set through
-  // UI is guranteed to be valid, and the accept-languages string returned from
-  // profile()->GetPrefs()->GetString(prefs::kAcceptLanguages) is guranteed to
-  // be valid and well-formed, which means each accept-langauge is a valid
-  // code, and accept-languages are seperatd by "," without surrrounding
-  // spaces. But we do not do any validation (either the format or the validity
-  // of the language code) on accept-languages set through editing preference
-  // file directly. So, here, we're adding extra checks to be resistant to
-  // crashes caused by data corruption.
-  ListValue* result_languages = new ListValue();
-  SetResult(result_languages);
-  if (acceptLanguages.empty()) {
-    error_ = kEmptyAcceptLanguagesError;
-    return false;
-  }
-  size_t begin = 0;
-  size_t end;
-  while (1) {
-    end = acceptLanguages.find(',', begin);
-    if (end > begin) {
-      // Guard against a malformed value with multiple "," in a row.
-      string16 acceptLang = acceptLanguages.substr(begin, end - begin);
-      result_languages->Append(Value::CreateStringValue(acceptLang));
-    }
-    begin = end + 1;
-    // 'begin >= acceptLanguages.length()' to guard against a value
-    // ending with ','.
-    if (end == string16::npos || begin >= acceptLanguages.length())
-      break;
-  }
-  if (result_languages->GetSize() == 0) {
-    error_ = kEmptyAcceptLanguagesError;
-    return false;
-  }
-  return true;
-}