Merge ""Fix" issue #5276520: Noise on edges of rotation animation"

            final Matrix tmpMatrix = mTmpMatrix;

            // Compute the desired transformation.

            tmpMatrix.setTranslate(0, 0);

            if (screenAnimation) {

                // If we are doing a screen animation, the global rotation

                // applied to windows can result in windows that are carefully

                // aligned with each other to slightly separate, allowing you

                // to see what is behind them.  An unsightly mess.  This...

                // thing...  magically makes it call good: scale each window

                // slightly (two pixels larger in each dimension, from the

                // window's center).

                final float w = frame.width();

                final float h = frame.height();

                tmpMatrix.setScale(1 + 2/w, 1 + 2/h, w/2, h/2);

            } else {

                tmpMatrix.reset();

            }

            tmpMatrix.postScale(mGlobalScale, mGlobalScale);

            if (selfTransformation) {

                tmpMatrix.postConcat(mTransformation.getMatrix());