Revert "libchrome: Uprev the library to r456626 from Chromium"

This reverts commit 0601274935e7f632eb0d6ce0fd223b744349d20b.

Reason for revert: Broke the mac_sdk
Exempt-From-Owner-Approval: Fixing mac_sdk

Change-Id: I2cab1818261f3b75dcf7dfc3edf6d6b7bab541a8
585 files changed