Move internal calls from GrContext to GrContextPriv

A mechanical bulk move just to get these out of the public API.

TBR=bsalomon@google.com
Change-Id: I813efbd54a09dd448275697c0e50947753a5cfd3
Reviewed-on: https://skia-review.googlesource.com/112262
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
diff --git a/src/gpu/GrAHardwareBufferImageGenerator.cpp b/src/gpu/GrAHardwareBufferImageGenerator.cpp
index 085d27a..be6a8d0 100644
--- a/src/gpu/GrAHardwareBufferImageGenerator.cpp
+++ b/src/gpu/GrAHardwareBufferImageGenerator.cpp
@@ -147,7 +147,8 @@
 #endif
 
 sk_sp<GrTextureProxy> GrAHardwareBufferImageGenerator::makeProxy(GrContext* context) {
-    if (context->abandoned() || kOpenGL_GrBackend != context->contextPriv().getBackend()) {
+    if (context->contextPriv().abandoned() ||
+        kOpenGL_GrBackend != context->contextPriv().getBackend()) {
         // Check if GrContext is not abandoned and the backend is GL.
         return nullptr;
     }