ccpr: Enable ccpr by default

Now that the path cache is implemented, we can use ccpr everywhere.

Modifies ccpr to not cache unless the "fAllowPathMaskCaching" context
option is enabled.

Adds a small condition to skip complicated paths with more vertices
than pixels, simply so we don't regress a couple testcases.

Updates skpbench to do three draws before starting the timer, in order
to prime the cache.

Bug: skia:
Change-Id: Ic3a0a2bdad8a22ff6431e77fa4da2b54d6bb9aba
Reviewed-on: https://skia-review.googlesource.com/137207
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
8 files changed