Make NVPR a GL context option instead of a GL context

tests/GrContextFactoryTest.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkTypes.h"
 
 #if SK_SUPPORT_GPU
 
 #include "GrContextFactory.h"
+#include "GrCaps.h"
 #include "Test.h"
 
-// TODO: test GrContextFactory.
+DEF_GPUTEST(GrContextFactoryNVPRContextOptions, reporter, /*factory*/) {
+    GrContextFactory testFactory;
+    // Test that if NVPR is possible, caps are in sync.
+    for (int i = 0; i < GrContextFactory::kGLContextTypeCnt; ++i) {
+        GrContextFactory::GLContextType glCtxType = static_cast<GrContextFactory::GLContextType>(i);
+        GrContext* context = testFactory.get(glCtxType,
+                                             kNone_GrGLStandard,
+                                             GrContextFactory::kEnableNVPR_GLContextOptions);
+        if (!context) {
+            continue;
+        }
+        REPORTER_ASSERT(
+                    reporter,
+                    context->caps()->shaderCaps()->pathRenderingSupport());
+    }
+}
 
 #endif