Bug 1168263 - Remove TransformRectOut since it's unused. r=roc

layout/base/nsDisplayList.cpp

@@ -5982,20 +5982,6 @@ nsRect nsDisplayTransform::TransformRect(const nsRect &aUntransformedBounds,
      factor);
 }
 
-nsRect nsDisplayTransform::TransformRectOut(const nsRect &aUntransformedBounds,
-                                            const nsIFrame* aFrame,
-                                            const nsPoint &aOrigin,
-                                            const nsRect* aBoundsOverride)
-{
-  NS_PRECONDITION(aFrame, "Can't take the transform based on a null frame!");
-
-  float factor = aFrame->PresContext()->AppUnitsPerDevPixel();
-  return nsLayoutUtils::MatrixTransformRectOut
-    (aUntransformedBounds,
-     GetResultingTransformMatrixP3D(aFrame, aOrigin, factor, aBoundsOverride),
-     factor);
-}
-
 bool nsDisplayTransform::UntransformRect(const nsRect &aTransformedBounds,
                                          const nsRect &aChildBounds,
                                          const nsIFrame* aFrame,

layout/base/nsDisplayList.h

@@ -3848,11 +3848,6 @@ public:
                               const nsRect* aBoundsOverride = nullptr,
                               bool aPreserves3D = true);
 
-  static nsRect TransformRectOut(const nsRect &aUntransformedBounds, 
-                                 const nsIFrame* aFrame,
-                                 const nsPoint &aOrigin,
-                                 const nsRect* aBoundsOverride = nullptr);
-
   /* UntransformRect is like TransformRect, except that it inverts the
    * transform.
    */

layout/base/nsLayoutUtils.cpp

@@ -2399,23 +2399,6 @@ nsLayoutUtils::RoundedRectIntersectsRect(const nsRect& aRoundedRect,
                      aRadii[NS_CORNER_BOTTOM_LEFT_Y]);
 }
 
-nsRect
-nsLayoutUtils::MatrixTransformRectOut(const nsRect &aBounds,
-                                      const Matrix4x4 &aMatrix, float aFactor)
-{
-  nsRect outside = aBounds;
-  outside.ScaleRoundOut(1/aFactor);
-  RectDouble image = RectDouble(outside.x, outside.y,
-                                outside.width, outside.height);
-
-  RectDouble maxBounds = RectDouble(double(nscoord_MIN) / aFactor * 0.5,
-                                    double(nscoord_MIN) / aFactor * 0.5,
-                                    double(nscoord_MAX) / aFactor,
-                                    double(nscoord_MAX) / aFactor);
-  image = aMatrix.TransformAndClipBounds(image, maxBounds);
-  return RoundGfxRectToAppRect(ThebesRect(image), aFactor);
-}
-
 nsRect
 nsLayoutUtils::MatrixTransformRect(const nsRect &aBounds,
                                    const Matrix4x4 &aMatrix, float aFactor)

layout/base/nsLayoutUtils.h

@@ -919,18 +919,6 @@ public:
   static nsRect MatrixTransformRect(const nsRect &aBounds,
                                     const Matrix4x4 &aMatrix, float aFactor);
 
-  /**
-   * Helper function that, given a rectangle and a matrix, returns the smallest
-   * rectangle containing the image of the source rectangle rounded out to the nearest
-   * pixel value.
-   *
-   * @param aBounds The rectangle to transform.
-   * @param aMatrix The matrix to transform it with.
-   * @param aFactor The number of app units per graphics unit.
-   * @return The smallest rect that contains the image of aBounds.
-   */
-  static nsRect MatrixTransformRectOut(const nsRect &aBounds,
-                                       const Matrix4x4 &aMatrix, float aFactor);
   /**
    * Helper function that, given a point and a matrix, returns the image
    * of that point under the matrix transform.