ABANDONED CL: Let's remove spellchecking code and see what tests (if any) break.

third_party/WebKit/Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 3729 matching lines @@
     UserGestureIndicator gesture(DefinitelyProcessingNewUserGesture);
     m_page->dragController().performDrag(&dragData);
 
     m_dragOperation = WebDragOperationNone;
     m_currentDragData = nullptr;
 }
 
 void WebViewImpl::spellingMarkers(WebVector<uint32_t>* markers)
 {
     Vector<uint32_t> result;
-    for (Frame* frame = m_page->mainFrame(); frame; frame = frame->tree().traverseNext()) {
-        if (!frame->isLocalFrame())
-            continue;
-        const DocumentMarkerVector& documentMarkers = toLocalFrame(frame)->document()->markers().markers();
-        for (size_t i = 0; i < documentMarkers.size(); ++i)
-            result.append(documentMarkers[i]->hash());
-    }
     markers->assign(result);
 }
 
 void WebViewImpl::removeSpellingMarkersUnderWords(const WebVector<WebString>& words)
 {
-    Vector<String> convertedWords;
-    convertedWords.append(words.data(), words.size());
-
-    for (Frame* frame = m_page->mainFrame(); frame; frame = frame->tree().traverseNext()) {
-        if (frame->isLocalFrame())
-            toLocalFrame(frame)->removeSpellingMarkersUnderWords(convertedWords);
-    }
 }
 
 WebDragOperation WebViewImpl::dragTargetDragEnterOrOver(const WebPoint& clientPoint, const WebPoint& screenPoint, DragAction dragAction, int modifiers)
 {
     DCHECK(m_currentDragData);
 
     m_currentDragData->setModifiers(modifiers);
     DragData dragData(
         m_currentDragData.get(),
         clientPoint,
@@ skipping 820 matching lines @@
         return nullptr;
     return focusedFrame;
 }
 
 LocalFrame* WebViewImpl::focusedLocalFrameAvailableForIme() const
 {
     return m_imeAcceptEvents ? focusedLocalFrameInWidget() : nullptr;
 }
 
 } // namespace blink