DO NOT MERGE - libstagefright: check requested memory size before allocation for SoftMPEG4Encoder and SoftVPXEncoder. am: 6afc659b00 am: 9e1d7751b1  -s ours am: 4c0d243626 am: 862b693ba3  -s ours
am: db76a879ea

* commit 'db76a879ea1a2b57a1561b04c3ffb39bed3155ae':
  DO NOT MERGE - libstagefright: check requested memory size before allocation for SoftMPEG4Encoder and SoftVPXEncoder.