Break layout context before and after bidi control character Bug: 170968514 Test: minikin_test Change-Id: Ibcff6f3b7fcb7fefa2acb7f52446cf4b4547a4a2 Merged-In: Ibcff6f3b7fcb7fefa2acb7f52446cf4b4547a4a2 (cherry picked from commit b0473792a5a0d9d287f6995f27e867c074835a28) (cherry picked from commit a75f578c3f46ad64bc6039adcee4faf11cec8e89)