Add GrRenderTargetContext::resourceProvider & GrResourceProvider::caps

and retract GrSurfaceContextPriv a bit

Change-Id: Id47af1052f9bda4fe7c85b3ce46b3ebe37797524
Reviewed-on: https://skia-review.googlesource.com/9647
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/GrResourceProvider.cpp b/src/gpu/GrResourceProvider.cpp
index 43e8297..1a04951 100644
--- a/src/gpu/GrResourceProvider.cpp
+++ b/src/gpu/GrResourceProvider.cpp
@@ -9,6 +9,7 @@
 
 #include "GrBuffer.h"
 #include "GrCaps.h"
+#include "GrContext.h"
 #include "GrGpu.h"
 #include "GrPathRendering.h"
 #include "GrRenderTarget.h"
@@ -36,6 +37,8 @@
         , fSingleOwner(owner)
 #endif
         {
+    fCaps = sk_ref_sp(fGpu->caps());
+
     GR_DEFINE_STATIC_UNIQUE_KEY(gQuadIndexBufferKey);
     fQuadIndexBufferKey = gQuadIndexBufferKey;
 }