Merge commit '9411c893730b8aad3c6c3c0ec693f5a58ec1e81a' into HEAD

* commit '9411c893730b8aad3c6c3c0ec693f5a58ec1e81a':
  Remove Python generated files accidentally added to tree in WebKit merge
Merge (-sours) commit '377929b9f78a89a370a95834beb8f32b2ed494b4' into HEAD

* commit '377929b9f78a89a370a95834beb8f32b2ed494b4':
  Add more padding round select boxes, use different assets at different resolutions, use new assets and don't deform the arrows when stretching the select box. http://b/issue?id=2506670
Merge commit '855bf5a103b19bdc941fc9533166f8bb770e26f9' into HEAD

* commit '855bf5a103b19bdc941fc9533166f8bb770e26f9':
  move CachedInput::init() to cpp
Update to use system/core/include 4.2.2_r1.2
Update to use binary.mk 4.3_r2.1