Remove unnecessary parameter

Source/core/rendering/svg/RenderSVGResourcePattern.cpp

 /*
  * Copyright (C) 2006 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 72 matching lines @@
     AffineTransform tileImageTransform;
     if (!buildTileImageTransform(object, m_attributes, patternElement, tileBoundaries, tileImageTransform))
         return 0;
 
     AffineTransform absoluteTransformIgnoringRotation;
     SVGRenderingContext::calculateDeviceSpaceTransformation(object, absoluteTransformIgnoringRotation);
 
     // Ignore 2D rotation, as it doesn't affect the size of the tile.
     SVGRenderingContext::clear2DRotation(absoluteTransformIgnoringRotation);
     FloatRect absoluteTileBoundaries = absoluteTransformIgnoringRotation.mapRect(tileBoundaries);
-    FloatRect clampedAbsoluteTileBoundaries;
 
     // Scale the tile size to match the scale level of the patternTransform.
     absoluteTileBoundaries.scale(static_cast<float>(m_attributes.patternTransform().xScale()),
         static_cast<float>(m_attributes.patternTransform().yScale()));
 
     // Build tile image.
-    OwnPtr<ImageBuffer> tileImage = createTileImage(m_attributes, tileBoundaries, absoluteTileBoundaries, tileImageTransform, clampedAbsoluteTileBoundaries);
+    OwnPtr<ImageBuffer> tileImage = createTileImage(m_attributes, tileBoundaries, absoluteTileBoundaries, tileImageTransform);
     if (!tileImage)
         return 0;
 
     RefPtr<Image> copiedImage = tileImage->copyImage(CopyBackingStore);
     if (!copiedImage)
         return 0;
 
     // Build pattern.
     OwnPtr<PatternData> patternData = adoptPtr(new PatternData);
     patternData->pattern = Pattern::create(copiedImage, true, true);
@@ skipping 111 matching lines @@
         tileImageTransform = viewBoxCTM;
     else if (attributes.patternContentUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
         tileImageTransform.scale(objectBoundingBox.width(), objectBoundingBox.height());
 
     return true;
 }
 
 PassOwnPtr<ImageBuffer> RenderSVGResourcePattern::createTileImage(const PatternAttributes& attributes,
                                                                   const FloatRect& tileBoundaries,
                                                                   const FloatRect& absoluteTileBoundaries,
-                                                                  const AffineTransform& tileImageTransform,
-                                                                  FloatRect& clampedAbsoluteTileBoundaries) const
+                                                                  const AffineTransform& tileImageTransform) const
 {
-    clampedAbsoluteTileBoundaries = SVGRenderingContext::clampedAbsoluteTargetRect(absoluteTileBoundaries);
+    FloatRect clampedAbsoluteTileBoundaries = SVGRenderingContext::clampedAbsoluteTargetRect(absoluteTileBoundaries);
 
     IntSize imageSize(roundedIntSize(clampedAbsoluteTileBoundaries.size()));
     if (imageSize.isEmpty())
         return nullptr;
     OwnPtr<ImageBuffer> tileImage = ImageBuffer::create(imageSize);
     if (!tileImage)
         return nullptr;
 
     GraphicsContext* tileImageContext = tileImage->context();
     ASSERT(tileImageContext);
@@ skipping 18 matching lines @@
             continue;
         if (element->renderer()->needsLayout())
             return nullptr;
         SVGRenderingContext::renderSubtree(tileImage->context(), element->renderer(), contentTransformation);
     }
 
     return tileImage.release();
 }
 
 }