Fix copyright header (#3407)
Fix copyright header (#3407)

AOSP was used when GAPID was part of Android Studio, the code is
copyright Google since GAPID became stand-alone.
google/agi,google/gapid,pmuetschard/gapid,google/agi,pmuetschard/gapid,google/agi,google/gapid,pmuetschard/gapid,pmuetschard/gapid,google/agi,pmuetschard/gapid,google/gapid,google/agi,google/agi,google/agi,pmuetschard/gapid,pmuetschard/gapid,google/agi,google/gapid,google/gapid,pmuetschard/gapid,google/gapid,google/gapid,google/gapid