Fix up the missing DISALLOW_COPY_AND_ASSIGN macros and various small
problems preventing us from turning on this warning. This should
ensure we more often use the DISALLOW macro going forward.

Change-Id: I2e1a9d23a31a51279a577fad8dffb8c1530e2ee8
Reviewed-on: https://chromium-review.googlesource.com/251100Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Cooper Partin <coopp@microsoft.com>
Tested-by: Cooper Partin <coopp@microsoft.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>