One signature for creating unit tests that run on premade GrContexts

tests/GpuDrawPathTest.cpp

 /*
  * Copyright 2013 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
@@ skipping 58 matching lines @@
     const SkRect rect = SkRect::MakeWH(100, 50);
     oval1.addOval(rect, SkPath::kCW_Direction);
     oval2.addOval(rect, SkPath::kCCW_Direction);
 
     fill_and_stroke(canvas, oval1, oval2, nullptr);
 
     const SkScalar intervals[] = { 1, 1 };
     fill_and_stroke(canvas, oval1, oval2, SkDashPathEffect::Make(intervals, 2, 0));
 }
 
-DEF_GPUTEST_FOR_ALL_CONTEXTS(GpuDrawPath, reporter, context) {
+DEF_GPUTEST_FOR_ALL_CONTEXTS(GpuDrawPath, reporter, ctxInfo) {
     for (auto& test_func : { &test_drawPathEmpty, &test_drawSameRectOvals }) {
         for (auto& sampleCount : {0, 4, 16}) {
             SkImageInfo info = SkImageInfo::MakeN32Premul(255, 255);
             auto surface(
-                SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, info, sampleCount, nullptr));
+                SkSurface::MakeRenderTarget(ctxInfo.fGrContext, SkBudgeted::kNo, info, sampleCount,
+                                            nullptr));
             if (!surface) {
                 continue;
             }
             test_func(reporter, surface->getCanvas());
         }
     }
 }
 
 DEF_GPUTEST(GrPathKeys, reporter, /*factory*/) {
     // Keys should not ignore conic weights.
     SkPath path1, path2;
     path1.setIsVolatile(true);
     path2.setIsVolatile(true);
     SkPoint p0 = SkPoint::Make(100, 0);
     SkPoint p1 = SkPoint::Make(100, 100);
 
     path1.conicTo(p0, p1, .5f);
     path2.conicTo(p0, p1, .7f);
 
     bool isVolatile;
     GrUniqueKey key1, key2;
     GrStrokeInfo stroke(SkStrokeRec::kFill_InitStyle);
     GrPath::ComputeKey(path1, stroke, &key1, &isVolatile);
     GrPath::ComputeKey(path2, stroke, &key2, &isVolatile);
     REPORTER_ASSERT(reporter, key1 != key2);
 }
 
 #endif