Revert of Separate repaint and layout requirements of StyleDifference (Step 1)

Source/core/rendering/svg/SVGInlineTextBox.cpp

 /**
  * Copyright (C) 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) Research In Motion Limited 2010. 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 663 matching lines @@
     if (!hasSelection || startPosition >= endPosition) {
         paintTextWithShadows(context, style, textRun, fragment, 0, fragment.length, resourceMode);
         return;
     }
 
     // Eventually draw text using regular style until the start position of the selection
     if (startPosition > 0 && !paintSelectedTextOnly)
         paintTextWithShadows(context, style, textRun, fragment, 0, startPosition, resourceMode);
 
     // Draw text using selection style from the start to the end position of the selection
-    if (style != selectionStyle) {
-        StyleDifference diff;
-        diff.setNeedsRepaintObject();
-        SVGResourcesCache::clientStyleChanged(&parent()->renderer(), diff, selectionStyle);
-    }
+    if (style != selectionStyle)
+        SVGResourcesCache::clientStyleChanged(&parent()->renderer(), StyleDifferenceRepaint, selectionStyle);
 
     paintTextWithShadows(context, selectionStyle, textRun, fragment, startPosition, endPosition, resourceMode);
 
-    if (style != selectionStyle) {
-        StyleDifference diff;
-        diff.setNeedsRepaintObject();
-        SVGResourcesCache::clientStyleChanged(&parent()->renderer(), diff, selectionStyle);
-    }
+    if (style != selectionStyle)
+        SVGResourcesCache::clientStyleChanged(&parent()->renderer(), StyleDifferenceRepaint, style);
 
     // Eventually draw text using regular style from the end position of the selection to the end of the current chunk part
     if (endPosition < static_cast<int>(fragment.length) && !paintSelectedTextOnly)
         paintTextWithShadows(context, style, textRun, fragment, endPosition, fragment.length, resourceMode);
 }
 
 void SVGInlineTextBox::paintDocumentMarker(GraphicsContext*, const FloatPoint&, DocumentMarker*, RenderStyle*, const Font&, bool)
 {
     // SVG does not have support for generic document markers (e.g., spellchecking, etc).
 }
@@ skipping 96 matching lines @@
                 renderer().updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset));
                 if (!result.addNodeToRectBasedTestResult(renderer().node(), request, locationInContainer, rect))
                     return true;
              }
         }
     }
     return false;
 }
 
 } // namespace WebCore