Revert of Make NVPR a GL context option instead of a GL context

tests/GLInterfaceValidationTest.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 "Test.h"
 
 // This is a GPU-backend specific test
 #if SK_SUPPORT_GPU
 
 #include "GrContextFactory.h"
 
-DEF_GPUTEST(GLInterfaceValidation, reporter, /*factory*/) {
-    GrContextFactory testFactory;
+DEF_GPUTEST(GLInterfaceValidation, reporter, factory) {
+    for (int i = 0; i <= GrContextFactory::kLastGLContextType; ++i) {
+        GrContextFactory::GLContextType glCtxType = (GrContextFactory::GLContextType)i;
+        // this forces the factory to make the context if it hasn't yet
+        GrContextFactory::ContextInfo* contextInfo = factory->getContextInfo(glCtxType);
+        SkGLContext* glCtx = contextInfo ? contextInfo->fGLContext : nullptr;
 
-    // Test that if we do not have NV_path_rendering -related GL extensions,
-    // GrContextFactory::get(.., kEnableNVPR_GLContextOptions) always returns nullptr.
-    for (int i = 0; i < GrContextFactory::kGLContextTypeCnt; ++i) {
-        GrContextFactory::GLContextType glCtxType = static_cast<GrContextFactory::GLContextType>(i);
-        GrContextFactory::ContextInfo* context =
-                testFactory.getContextInfo(glCtxType, kNone_GrGLStandard,
-                                           GrContextFactory::kNone_GLContextOptions);
-        if (!context) {
+        // We're supposed to fail the NVPR context type when we the native context that does not
+        // support the NVPR extension.
+        if (GrContextFactory::kNVPR_GLContextType == glCtxType &&
+            factory->getContextInfo(GrContextFactory::kNative_GLContextType) &&
+            !factory->getContextInfo(GrContextFactory::kNative_GLContextType)->fGLContext->gl()->hasExtension("GL_NV_path_rendering")) {
+            REPORTER_ASSERT(reporter, nullptr == glCtx);
             continue;
         }
 
-        SkGLContext* glContext = context->fGLContext;
-        REPORTER_ASSERT(reporter, glContext->gl()->validate());
-
-        if (!(glContext->gl()->hasExtension("GL_NV_path_rendering") ||
-              glContext->gl()->hasExtension("GL_CHROMIUM_path_rendering"))) {
-                REPORTER_ASSERT(reporter,
-                                nullptr == testFactory.getContextInfo(
-                                    glCtxType,
-                                    kNone_GrGLStandard,
-                                    GrContextFactory::kEnableNVPR_GLContextOptions));
+        REPORTER_ASSERT(reporter, glCtx);
+        if (glCtx) {
+            const GrGLInterface* interface = glCtx->gl();
+            REPORTER_ASSERT(reporter, interface->validate());
         }
     }
-
 }
 
 #endif