Bug 981872 - Replace sha-1 MessageDigest with NativeCrypto.
Bug 981872 - Review comment: Catch only LinkageError.
Bug 981872 - Replace sha-1 MessageDigest with NativeCrypto. r=nalexander
Bug 985766 - Part 1: Remove little-used HawkAuthHeaderProvider constructor.
Bug 985766 - Part 2: Don't include payload verification to non-POST, non-PUT HAWK requests.
Bug 985766 - Part 3: Always include payload verification hashes in FxAccountClient* requests.
Bug 985766 - Part 4: Explain why we do not include payload verification hashes in Sync storage endpoint requests.