Make ProcessorCloneTest more robust, fix matrix conv. onIsEqual

Change-Id: Iddf860b462dcac36f6a7f5b90d4ce4dceed0dd31
Reviewed-on: https://skia-review.googlesource.com/29604
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
2 files changed