Revert "Revert "we now cache GLSL shaders when we can't cache the binaries""

This reverts commit 255f73a27683f7a380a90611bfe1f12613845735.

Bug: skia:
Change-Id: I87c04ad340ebe107308d384cd91658330493d6ad
Reviewed-on: https://skia-review.googlesource.com/c/181564
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2 files changed