Fix calculation of content insets

When calculating all the frames and insets, we need to use the actual
frame instead of layoutContainingFrame. To do this, we layout mFrame
with layoutContaining/layoutDisplayFrame, calculate all the content
frames and insets, and then offset everything by the constant offset.

Bug: 28075359
Change-Id: I78f0a54ca2a0cc6c7c8be21153c2b2c8f1d5c0a9