Turn ContextInfos returned by GrContextFactory into structs.

tests/VkClearTests.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 // This is a GPU-backend specific test. It relies on static intializers to work
 
 #include "SkTypes.h"
@@ skipping 179 matching lines @@
     gpu->readPixels(tex, subWidth, subHeight, subWidth, subHeight,
                     config, (void*)subBuffer.get(), 0);
     REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(subBuffer.get(),
                                                                      subColor4,
                                                                      config,
                                                                      subWidth,
                                                                      subHeight));
 }
 
 DEF_GPUTEST_FOR_VULKAN_CONTEXT(VkClearTests, reporter, ctxInfo) {
-    basic_clear_test(reporter, ctxInfo.fGrContext, kRGBA_8888_GrPixelConfig);
-    basic_clear_test(reporter, ctxInfo.fGrContext, kBGRA_8888_GrPixelConfig);
-    sub_clear_test(reporter, ctxInfo.fGrContext, kRGBA_8888_GrPixelConfig);
-    sub_clear_test(reporter, ctxInfo.fGrContext, kBGRA_8888_GrPixelConfig);
+    basic_clear_test(reporter, ctxInfo.grContext(), kRGBA_8888_GrPixelConfig);
+    basic_clear_test(reporter, ctxInfo.grContext(), kBGRA_8888_GrPixelConfig);
+    sub_clear_test(reporter, ctxInfo.grContext(), kRGBA_8888_GrPixelConfig);
+    sub_clear_test(reporter, ctxInfo.grContext(), kBGRA_8888_GrPixelConfig);
 }
 
 #endif