Generate list of GPU contexts outside tests

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
 
 #include "GrContext.h"
-#include "GrContextFactory.h"
 #include "GrPath.h"
 #include "GrStrokeInfo.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
 #include "SkColor.h"
 #include "SkPaint.h"
 #include "SkPath.h"
 #include "SkDashPathEffect.h"
 #include "SkRRect.h"
 #include "SkRect.h"
 #include "SkSurface.h"
 #include "Test.h"
 
+#include <initializer_list>
+
 static void test_drawPathEmpty(skiatest::Reporter*, SkCanvas* canvas) {
     // Filling an empty path should not crash.
     SkPaint paint;
     SkRect emptyRect = SkRect::MakeEmpty();
     canvas->drawRect(emptyRect, paint);
     canvas->drawPath(SkPath(), paint);
     canvas->drawOval(emptyRect, paint);
     canvas->drawRect(emptyRect, paint);
     canvas->drawRRect(SkRRect::MakeRect(emptyRect), paint);
 
@@ skipping 32 matching lines @@
     oval1.addOval(rect, SkPath::kCW_Direction);
     oval2.addOval(rect, SkPath::kCCW_Direction);
 
     fill_and_stroke(canvas, oval1, oval2, nullptr);
 
     const SkScalar intervals[] = { 1, 1 };
     SkAutoTUnref<SkPathEffect> dashEffect(SkDashPathEffect::Create(intervals, 2, 0));
     fill_and_stroke(canvas, oval1, oval2, dashEffect);
 }
 
-DEF_GPUTEST(GpuDrawPath, reporter, factory) {
-    for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) {
-        GrContextFactory::GLContextType glType = static_cast<GrContextFactory::GLContextType>(type);
-
-        GrContext* grContext = factory->get(glType);
-        if (nullptr == grContext) {
-            continue;
-        }
-        static const int sampleCounts[] = { 0, 4, 16 };
-
-        for (size_t i = 0; i < SK_ARRAY_COUNT(sampleCounts); ++i) {
+DEF_GPUTEST_FOR_ALL_CONTEXTS(GpuDrawPath, reporter, context) {
+    for (auto& test_func : { &test_drawPathEmpty, &test_drawSameRectOvals }) {
+        for (auto& sampleCount : {0, 4, 16}) {
             SkImageInfo info = SkImageInfo::MakeN32Premul(255, 255);
-            
             SkAutoTUnref<SkSurface> surface(
-                SkSurface::NewRenderTarget(grContext, SkSurface::kNo_Budgeted, info,
-                                           sampleCounts[i], nullptr));
+                SkSurface::NewRenderTarget(context, SkSurface::kNo_Budgeted, info,
+                                           sampleCount, nullptr));
             if (!surface) {
                 continue;
             }
-            test_drawPathEmpty(reporter, surface->getCanvas());
+            test_func(reporter, surface->getCanvas());
         }
     }
 }
 
-DEF_GPUTEST(GpuDrawPathSameRectOvals, reporter, factory) {
-    GrContext* grContext = factory->get(GrContextFactory::kNVPR_GLContextType);
-    if (!grContext) {
-        return;
-    }
-
-    SkAutoTUnref<SkSurface> surface(
-        SkSurface::NewRenderTarget(grContext, SkSurface::kNo_Budgeted,
-                                   SkImageInfo::MakeN32Premul(255, 255), 4));
-    test_drawSameRectOvals(reporter, surface->getCanvas());
-}
-
-DEF_TEST(GrPathKeys, reporter) {
+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