Turn NVPR on by default (but off in tools).

tests/GLInterfaceValidation.cpp

Index: tests/GLInterfaceValidation.cpp
diff --git a/tests/GLInterfaceValidation.cpp b/tests/GLInterfaceValidation.cpp
index 37a83df6fbf766f76676eb5a016d143cb5e0e55b..541af8fe9232434fa99b9aa2940a176d2107eb20 100755
--- a/tests/GLInterfaceValidation.cpp
+++ b/tests/GLInterfaceValidation.cpp
@@ -18,6 +18,16 @@ DEF_GPUTEST(GLInterfaceValidation, reporter, factory) {
         // this forces the factory to make the context if it hasn't yet
         factory->get(glCtxType);
         SkGLContextHelper* glCtxHelper = factory->getGLContext(glCtxType);
+
+        // 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 &&
+            NULL != factory->getGLContext(GrContextFactory::kNative_GLContextType) &&
+            !factory->getGLContext(GrContextFactory::kNative_GLContextType)->hasExtension("GL_NV_path_rendering")) {
+            REPORTER_ASSERT(reporter, NULL == glCtxHelper);
+            continue;
+        }
+
         REPORTER_ASSERT(reporter, NULL != glCtxHelper);
         if (NULL != glCtxHelper) {
             const GrGLInterface* interface = glCtxHelper->gl();