Revert removal of grammar checking and marking code

third_party/WebKit/Source/web/SpellCheckerClientImpl.cpp

 /*
  * Copyright (C) 2006, 2007 Apple, Inc.  All rights reserved.
  * Copyright (C) 2012 Google, Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 129 matching lines @@
 void SpellCheckerClientImpl::requestCheckingOfString(TextCheckingRequest* request)
 {
     if (!m_webView->spellCheckClient())
         return;
     const String& text = request->data().text();
     const Vector<uint32_t>& markers = request->data().markers();
     const Vector<unsigned>& markerOffsets = request->data().offsets();
     m_webView->spellCheckClient()->requestCheckingOfText(text, markers, markerOffsets, new WebTextCheckingCompletionImpl(request));
 }
 
+void SpellCheckerClientImpl::checkGrammarOfString(const String& text, WTF::Vector<GrammarDetail>& details, int* badGrammarLocation, int* badGrammarLength)
+{
+    if (badGrammarLocation)
+        *badGrammarLocation = -1;
+    if (badGrammarLength)
+        *badGrammarLength = 0;
+
+    if (!m_webView->spellCheckClient())
+        return;
+    WebVector<WebTextCheckingResult> webResults;
+    m_webView->spellCheckClient()->checkTextOfParagraph(text, WebTextCheckingTypeGrammar, &webResults);
+    if (!webResults.size())
+        return;
+
+    // Convert a list of WebTextCheckingResults to a list of GrammarDetails. If
+    // the converted vector of GrammarDetails has grammar errors, we set
+    // badGrammarLocation and badGrammarLength to tell WebKit that the input
+    // text has grammar errors.
+    for (size_t i = 0; i < webResults.size(); ++i) {
+        if (webResults[i].decoration == WebTextDecorationTypeGrammar) {
+            GrammarDetail detail;
+            detail.location = webResults[i].location;
+            detail.length = webResults[i].length;
+            detail.userDescription = webResults[i].replacement;
+            details.append(detail);
+        }
+    }
+    if (!details.size())
+        return;
+    if (badGrammarLocation)
+        *badGrammarLocation = 0;
+    if (badGrammarLength)
+        *badGrammarLength = text.length();
+}
+
 void SpellCheckerClientImpl::updateSpellingUIWithMisspelledWord(const String& misspelledWord)
 {
     if (m_webView->spellCheckClient())
         m_webView->spellCheckClient()->updateSpellingUIWithMisspelledWord(WebString(misspelledWord));
 }
 
 void SpellCheckerClientImpl::showSpellingUI(bool show)
 {
     if (m_webView->spellCheckClient())
         m_webView->spellCheckClient()->showSpellingUI(show);
 }
 
 bool SpellCheckerClientImpl::spellingUIIsShowing()
 {
     if (m_webView->spellCheckClient())
         return m_webView->spellCheckClient()->isShowingSpellingUI();
     return false;
 }
 
 } // namespace blink