code: @Override
      public void setShadowPadding(int left, int top, int right, int bottom) {
          mShadowBounds.set(left, top, right, bottom);
          super.setPadding(left + mContentPadding.left, top + mContentPadding.top,
                  right + mContentPadding.right, bottom + mContentPadding.bottom);
      }
docs: Internal method used by CardView implementations to update the padding.
  
  @hide