Add maxTextureSize()/maxRenderTargetSize() to GrContext

This provides an alternative way to access these values which will allow removal GrContext::caps() from public API

Change-Id: I53d3c00563da8847e1fc14aea9750dc9fd90d1e5
Reviewed-on: https://skia-review.googlesource.com/118962
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
2 files changed