Update build-tools to ab/4515345
am: 35cd904aef

Change-Id: Ie2d4d553e1cf379dfab9c5a874ab25a074f55e45
tree: 1102a5dd64a3f025b6db7c068e5f647b0f6b56bd
  1. common/
  2. darwin-x86/
  3. linux-x86/
  4. build-prebuilts.sh
  5. manifest.xml
  6. OWNERS