Android O MR1 IOT Release 1.0.5 (5014699)
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Merge changes Ib7227f18,I96926932,I46476112,I2c17b1e4,I47ee9e39, ...

* changes:
  camera: replace `-Wno-error` flag with `-Werror`
  camera: fix `-Wunused-function` compiler warnings
  camera: fix `-Wpessimizing-move` compiler warnings
  camera: fix `-Wmissing-field-initializers` compiler warnings
  camera: fix `-Wsign-compare` compiler warnings
  camera: fix `-Wunused-variable` compiler warnings
  camera: fix `-Wunused-private-field` compiler warnings
  camera: fix `-Wreorder` compiler warnings
  camera: fix `-Wunused-parameter` compiler warnings
  camera: fix `-Wformat` compiler warnings
  camera: fix `-Wmacro-redefined` compiler warnings