Delete selection gap code.

third_party/WebKit/Source/core/layout/line/InlineTextBox.cpp

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * 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 177 matching lines @@
 {
     // TODO(wkorman): We shouldn't need layout at this point and it should
     // be enforced by DocumentLifecycle. http://crbug.com/537821
     // Bail out as currently looking up selection state can cause the editing
     // code can force a re-layout while scrutinizing the editing position, and
     // InlineTextBox instances are not guaranteed to survive a re-layout.
     if (lineLayoutItem().needsLayout())
         return false;
 
     SelectionState state = selectionState();
-    return RuntimeEnabledFeatures::selectionPaintingWithoutSelectionGapsEnabled()
-        && (state == SelectionStart || state == SelectionInside)
+    return (state == SelectionStart || state == SelectionInside)
         // Checking last leaf child can be slow, so we make sure to do this only
         // after the other simple conditionals.
         && (root().lastLeafChild() == this)
         // It's possible to have mixed LTR/RTL on a single line, and we only
         // want to paint a newline when we're the last leaf child and we make
         // sure there isn't a differently-directioned box following us.
         && ((!isLeftToRightDirection() && root().firstSelectedBox() == this)
             || (isLeftToRightDirection() && root().lastSelectedBox() == this));
 }
 
@@ skipping 417 matching lines @@
     printedCharacters = fprintf(stderr, "\t%s %p", obj.name(), obj.debugPointer());
     const int layoutObjectCharacterOffset = 75;
     for (; printedCharacters < layoutObjectCharacterOffset; printedCharacters++)
         fputc(' ', stderr);
     fprintf(stderr, "(%d,%d) \"%s\"\n", start(), start() + len(), value.utf8().data());
 }
 
 #endif
 
 } // namespace blink