Fix drawing of VectorDrawables that are rotated by 90 or 270 degrees.

The SCALE_X / SCALE_Y values of rotated matrices are set to the cosine
of the rotation angle, which is 0 for drawables that are rotated by 90
or 270 degrees. Map the matrix onto the bounds rectangle and use the
resulting size to determine the scaled size instead.

Change-Id: I6cc0f0b5569d43434c829cb5f6e5f848cad995ec