Generate list of GPU contexts outside tests

tests/ImageFilterTest.cpp

Index: tests/ImageFilterTest.cpp
diff --git a/tests/ImageFilterTest.cpp b/tests/ImageFilterTest.cpp
index 012b1a98624ff146c0ff1000d2c0f87e8816d1d8..6f4f36ca565736c0c90bde1da3be618b35c2581c 100644
--- a/tests/ImageFilterTest.cpp
+++ b/tests/ImageFilterTest.cpp
@@ -38,7 +38,7 @@
 #include "Test.h"
 
 #if SK_SUPPORT_GPU
-#include "GrContextFactory.h"
+#include "GrContext.h"
 #include "SkGpuDevice.h"
 #endif
 
@@ -1238,11 +1238,7 @@ DEF_TEST(ImageFilterImageSourceSerialization, reporter) {
 
 #if SK_SUPPORT_GPU
 
-DEF_GPUTEST(ImageFilterCropRectGPU, reporter, factory) {
-    GrContext* context = factory->get(static_cast<GrContextFactory::GLContextType>(0));
-    if (nullptr == context) {
-        return;
-    }
+DEF_GPUTEST_FOR_NATIVE_CONTEXT(ImageFilterCropRect_Gpu, reporter, context) {
     const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
 
     SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(context,
@@ -1256,11 +1252,7 @@ DEF_GPUTEST(ImageFilterCropRectGPU, reporter, factory) {
     test_crop_rects(&proxy, reporter);
 }
 
-DEF_GPUTEST(HugeBlurImageFilterGPU, reporter, factory) {
-    GrContext* context = factory->get(static_cast<GrContextFactory::GLContextType>(0));
-    if (nullptr == context) {
-        return;
-    }
+DEF_GPUTEST_FOR_NATIVE_CONTEXT(HugeBlurImageFilter_Gpu, reporter, context) {
     const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
 
     SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(context,
@@ -1274,11 +1266,7 @@ DEF_GPUTEST(HugeBlurImageFilterGPU, reporter, factory) {
     test_huge_blur(&canvas, reporter);
 }
 
-DEF_GPUTEST(XfermodeImageFilterCroppedInputGPU, reporter, factory) {
-    GrContext* context = factory->get(static_cast<GrContextFactory::GLContextType>(0));
-    if (nullptr == context) {
-        return;
-    }
+DEF_GPUTEST_FOR_NATIVE_CONTEXT(XfermodeImageFilterCroppedInput_Gpu, reporter, context) {
     const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
 
     SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(context,
@@ -1292,11 +1280,7 @@ DEF_GPUTEST(XfermodeImageFilterCroppedInputGPU, reporter, factory) {
     test_xfermode_cropped_input(&canvas, reporter);
 }
 
-DEF_GPUTEST(TestNegativeBlurSigmaGPU, reporter, factory) {
-    GrContext* context = factory->get(static_cast<GrContextFactory::GLContextType>(0));
-    if (nullptr == context) {
-        return;
-    }
+DEF_GPUTEST_FOR_NATIVE_CONTEXT(TestNegativeBlurSigma_Gpu, reporter, context) {
     const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
 
     SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(context,