Componentize spellcheck [4]: spellcheck/browser and android java-side.

components/spellcheck/browser/pref_names.cc

+// Copyright 2016 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 "components/spellcheck/browser/pref_names.h"
+
+namespace spellcheck {
+namespace prefs {
+
+// Boolean pref to define the default values for using spellchecker.
+const char kEnableContinuousSpellcheck[] = "browser.enable_spellchecking";
+
+// String which represents the dictionary name for our spell-checker.
+// This is an old preference that is being migrated to kSpellCheckDictionaries.
+const char kSpellCheckDictionary[] = "spellcheck.dictionary";
+
+// List of strings representing the dictionary names for our spell-checker.
+const char kSpellCheckDictionaries[] = "spellcheck.dictionaries";
+
+// String which represents whether we use the spelling service.
+const char kSpellCheckUseSpellingService[] = "spellcheck.use_spelling_service";
+
+}  // namespace prefs
+}  // namespace spellcheck