Made text inside <input> elements scrollable using touch gestures

Source/core/rendering/RenderTextControlSingleLine.h

 /*
  * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 95 matching lines @@
 // This will catch anyone doing an unnecessary cast.
 void toRenderTextControlSingleLine(const RenderTextControlSingleLine*);
 
 // ----------------------------
 
 class RenderTextControlInnerBlock : public RenderBlock {
 public:
     RenderTextControlInnerBlock(Element* element) : RenderBlock(element) { }
 
 private:
+    virtual bool isTextField() const { return true; }

[esprehn, 2013/08/12 23:38:06]

You can't override this, we assume that if isTextField is true that
toRenderTextControlSingleLine is safe, but that's not true now.

[bokan, 2013/08/13 01:13:48]

Replaced with a new virtual RenderBox::isIntristicallyScrollable that scrollable
controls can use. This actually seems cleaner. 

+    virtual bool scrollsOverflowX() const OVERRIDE { return hasOverflowClip(); }
+    virtual bool scrollsOverflowY() const OVERRIDE { return false; }

[esprehn, 2013/08/12 23:38:06]

missing OVERRIDE on all of these

[bokan, 2013/08/13 01:13:48]

Done.

     virtual bool hasLineIfEmpty() const { return true; }
 };
 
 }
 
 #endif