Merge third_party/libphonenumber/src/phonenumbers from http://git.chromium.org/external/libphonenumber/cpp/src/phonenumbers.git at a6eef04c15f45d5916ee3429d24665c49148b99b

This commit was generated by merge-from-chromium.py.

Change-Id: I9792b5b6dc13dfe53433790517cc237e257ca693