am 704da604: Merge "Disable Proguard for the SampleBrowerPlugin" into gingerbread

Merge commit '704da60406d259c5a3bfe273755861f80575d7ca' into gingerbread-plus-aosp

* commit '704da60406d259c5a3bfe273755861f80575d7ca':
  Disable Proguard for the SampleBrowerPlugin