Uprev libchrome to r576279 (1/multiple)

This patch brings the latest and greatest features of libchrome to
android. It contains ~2600 patches.
Reason for uprev: libbluetooth want to use some of the most recent
features avaliable.

Test: libchrome_test
Change-Id: I5f8d5931b404767d3b86cb3bd8df2a05dd67a768
Merged-In: I5f8d5931b404767d3b86cb3bd8df2a05dd67a768