Revert of Add direct getter for GrCaps to GrContext. (patchset #4 id:60001 of https://codereview.chromium.org/1149773005/)

Reason for revert:
Breaking

Original issue's description:
> Add direct getter for GrCaps to GrContext.
>
> TBR=joshualitt@google.com
>
> Committed: https://skia.googlesource.com/skia/+/9138c46e572085870638b6f7ad7fcdfcdf3cac99

TBR=joshualitt@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1164443002
diff --git a/src/gpu/GrPathRendererChain.cpp b/src/gpu/GrPathRendererChain.cpp
index 7c68a02..bc74e2f 100644
--- a/src/gpu/GrPathRendererChain.cpp
+++ b/src/gpu/GrPathRendererChain.cpp
@@ -78,9 +78,9 @@
 
 void GrPathRendererChain::init() {
     SkASSERT(!fInit);
-    const GrCaps* caps = fOwner->caps();
-    bool twoSided = caps->twoSidedStencilSupport();
-    bool wrapOp = caps->stencilWrapOpsSupport();
+    GrGpu* gpu = fOwner->getGpu();
+    bool twoSided = gpu->caps()->twoSidedStencilSupport();
+    bool wrapOp = gpu->caps()->stencilWrapOpsSupport();
     GrPathRenderer::AddPathRenderers(fOwner, this);
     this->addPathRenderer(SkNEW_ARGS(GrDefaultPathRenderer,
                                      (twoSided, wrapOp)))->unref();