Rework compositor touch hit testing

Source/core/rendering/RenderText.cpp

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Andrew Wellington (proton@wiretapped.net)
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 1350 matching lines @@
     while ((previousText = previousText->previousInPreOrder()))
         if (!isInlineFlowOrEmptyText(previousText))
             break;
     UChar prev = ' ';
     if (previousText && previousText->isText())
         if (StringImpl* previousString = toRenderText(previousText)->text().impl())
             prev = (*previousString)[previousString->length() - 1];
     return prev;
 }
 
+void RenderText::addLayerHitTestRects(LayerHitTestRects&, const RenderLayer* currentLayer, const LayoutPoint& layerOffset) const
+{
+    // Text nodes aren't event targets, so don't descend any further.
+}
+
 void applyTextTransform(const RenderStyle* style, String& text, UChar previousCharacter)
 {
     if (!style)
         return;
 
     switch (style->textTransform()) {
     case TTNONE:
         break;
     case CAPITALIZE:
         makeCapitalized(&text, previousCharacter);
@@ skipping 540 matching lines @@
 
     SecureTextTimer* secureTextTimer = gSecureTextTimers->get(this);
     if (!secureTextTimer) {
         secureTextTimer = new SecureTextTimer(this);
         gSecureTextTimers->add(this, secureTextTimer);
     }
     secureTextTimer->restartWithNewText(lastTypedCharacterOffset);
 }
 
 } // namespace WebCore