
Move chrome.experimental.identity APIs into the Pulsar-specific externs, and update them to reflect the change in https://chromiumcodereview.appspot.com/10694046

R=ewa
DELTA=24  (16 added, 8 deleted, 0 changed)


Revision created by MOE tool push_codebase.
MOE_MIGRATION=5101


ajukraine/closure-compiler,ajukraine/closure-compiler