Implement chrome.languageSettingsPrivate custom spell check functions

chrome/browser/extensions/api/language_settings_private/language_settings_private_api.h

 // Copyright 2015 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_LANGUAGE_SETTINGS_PRIVATE_LANGUAGE_SETTINGS_PRIVATE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_LANGUAGE_SETTINGS_PRIVATE_LANGUAGE_SETTINGS_PRIVATE_API_H_
 
 #include "base/macros.h"
 #include "chrome/browser/extensions/chrome_extension_function_details.h"
 #include "chrome/browser/spellchecker/spellcheck_custom_dictionary.h"
@@ skipping 55 matching lines @@
   // ExtensionFunction overrides.
   ResponseAction Run() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(
       LanguageSettingsPrivateGetSpellcheckDictionaryStatusesFunction);
 };
 
 // Implements the languageSettingsPrivate.getSpellcheckWords method.
 class LanguageSettingsPrivateGetSpellcheckWordsFunction
-    : public UIThreadExtensionFunction {
+    : public UIThreadExtensionFunction,
+      public SpellcheckCustomDictionary::Observer {
  public:
   LanguageSettingsPrivateGetSpellcheckWordsFunction();
   DECLARE_EXTENSION_FUNCTION("languageSettingsPrivate.getSpellcheckWords",
                              LANGUAGESETTINGSPRIVATE_GETSPELLCHECKWORDS)
 
  protected:
   ~LanguageSettingsPrivateGetSpellcheckWordsFunction() override;
 
   // ExtensionFunction overrides.
   ResponseAction Run() override;
 
+  // SpellcheckCustomDictionary::Observer overrides.
+  void OnCustomDictionaryLoaded() override;
+  void OnCustomDictionaryChanged(
+      const SpellcheckCustomDictionary::Change& dictionary_change) override;
+
+  // Returns the list of words from the loaded custom dictionary.
+  scoped_ptr<base::ListValue> GetSpellcheckWords() const;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(LanguageSettingsPrivateGetSpellcheckWordsFunction);
 };
 
+// Implements the languageSettingsPrivate.addSpellcheckWord method.
+class LanguageSettingsPrivateAddSpellcheckWordFunction
+    : public UIThreadExtensionFunction {
+ public:
+  LanguageSettingsPrivateAddSpellcheckWordFunction();
+  DECLARE_EXTENSION_FUNCTION("languageSettingsPrivate.addSpellcheckWord",
+                             LANGUAGESETTINGSPRIVATE_ADDSPELLCHECKWORD)
+
+ protected:
+  ~LanguageSettingsPrivateAddSpellcheckWordFunction() override;
+
+  // ExtensionFunction overrides.
+  ResponseAction Run() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(LanguageSettingsPrivateAddSpellcheckWordFunction);
+};
+
+// Implements the languageSettingsPrivate.removeSpellcheckWord method.
+class LanguageSettingsPrivateRemoveSpellcheckWordFunction
+    : public UIThreadExtensionFunction {
+ public:
+  LanguageSettingsPrivateRemoveSpellcheckWordFunction();
+  DECLARE_EXTENSION_FUNCTION("languageSettingsPrivate.removeSpellcheckWord",
+                             LANGUAGESETTINGSPRIVATE_REMOVESPELLCHECKWORD)
+
+ protected:
+  ~LanguageSettingsPrivateRemoveSpellcheckWordFunction() override;
+
+  // ExtensionFunction overrides.
+  ResponseAction Run() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(LanguageSettingsPrivateRemoveSpellcheckWordFunction);
+};
+
 // Implements the languageSettingsPrivate.getTranslateTargetLanguage method.
 class LanguageSettingsPrivateGetTranslateTargetLanguageFunction
     : public UIThreadExtensionFunction {
  public:
   LanguageSettingsPrivateGetTranslateTargetLanguageFunction();
   DECLARE_EXTENSION_FUNCTION(
       "languageSettingsPrivate.getTranslateTargetLanguage",
       LANGUAGESETTINGSPRIVATE_GETTRANSLATETARGETLANGUAGE)
 
  protected:
@@ skipping 59 matching lines @@
   // ExtensionFunction overrides.
   ResponseAction Run() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(LanguageSettingsPrivateRemoveInputMethodFunction);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_LANGUAGE_SETTINGS_PRIVATE_LANGUAGE_SETTINGS_PRIVATE_API_H_