am d5ada83c: ScaleGestureDetector needs to query the displaymetrics for the width/height on each touch down as orientation can change.

Merge commit 'd5ada83c719d366d3063572ca6ce5ab8918fd39b' into eclair-plus-aosp

* commit 'd5ada83c719d366d3063572ca6ce5ab8918fd39b':
  ScaleGestureDetector needs to query the displaymetrics