Integrating Mac OS Grammar checker into Chromium.

chrome/browser/spellchecker_platform_engine.h

 // Copyright (c) 2009 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.
 
 // This file defines the interface that any platform-specific spellchecker
 // needs to implement in order to be used by the browser.
 
 #ifndef CHROME_BROWSER_SPELLCHECKER_PLATFORM_ENGINE_H_
 #define CHROME_BROWSER_SPELLCHECKER_PLATFORM_ENGINE_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
+#include "base/callback.h"
 #include "base/string16.h"
 
+class BrowserMessageFilter;
+
 namespace SpellCheckerPlatform {
 
 // Get the languages supported by the platform spellchecker and store them in
 // |spellcheck_languages|. Note that they must be converted to
 // Chromium style codes (en-US not en_US). See spellchecker.cc for a full list.
 void GetAvailableLanguages(std::vector<std::string>* spellcheck_languages);
 
 // Returns true if there is a platform-specific spellchecker that can be used.
 bool SpellCheckerAvailable();
 
@@ skipping 47 matching lines @@
 // the tag for sure is to ask the renderer, which would mean blocking in the
 // browser, so (on the mac, anyway) we remember the most recent tag and use
 // it, since it should always be from the same document.
 void IgnoreWord(const string16& word);
 
 // Tells the platform spellchecker that a document associated with a tag has
 // closed. Generally, this means that any ignored words associated with that
 // document can now be forgotten.
 void CloseDocumentWithTag(int tag);
 
+// Requests an asyncronous spell and grammar checking.
+// The result is returned to an IPC message to |destination| thus it should
+// not be null.
+void RequestTextCheck(int route_id,
+                      int identifier,
+                      int document_tag,
+                      const string16& text,
+                      BrowserMessageFilter* destination);
+
 }  // namespace SpellCheckerPlatform
 
 #endif  // CHROME_BROWSER_SPELLCHECKER_PLATFORM_ENGINE_H_