Run debug gl context for DEF_GPU_TEST_FOR_ALL_CONTEXTS

dm/DM.cpp

Index: dm/DM.cpp
diff --git a/dm/DM.cpp b/dm/DM.cpp
index 41063b7e8642946a4532aa7df72021edae276fd3..1ea81f8053cc3b257ed1d4aa2fe1f5927aec4fe4 100644
--- a/dm/DM.cpp
+++ b/dm/DM.cpp
@@ -1180,12 +1180,12 @@ void RunWithGPUTestContexts(T test, GPUTestContexts testContexts, Reporter* repo
         int contextSelector = kNone_GPUTestContexts;
         if (GrContextFactory::IsRenderingGLContext(glCtxType)) {
             contextSelector |= kAllRendering_GPUTestContexts;
-        }
-        if (glCtxType == GrContextFactory::kNative_GLContextType) {
+        } else if (glCtxType == GrContextFactory::kNative_GLContextType) {
             contextSelector |= kNative_GPUTestContexts;
-        }
-        if (glCtxType == GrContextFactory::kNull_GLContextType) {
+        } else if (glCtxType == GrContextFactory::kNull_GLContextType) {
             contextSelector |= kNull_GPUTestContexts;
+        } else if (glCtxType == GrContextFactory::kDebug_GLContextType) {
+            contextSelector |= kDebug_GPUTestContexts;
         }
         if ((testContexts & contextSelector) == 0) {
             continue;