Merge "Adding gcc-specific disable of Wattributes in preparation for libcxx rebase."
am: 7984620

* commit '798462046192ede9e723672016da5f7aa17fc988':
  Adding gcc-specific disable of Wattributes in preparation for libcxx rebase.

Change-Id: Ie67479e1157d97f5b42f42b086bdaf31d738e398