Add SkColorSpace to GrDrawContext

tests/TessellatingPathRendererTests.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.
  */
 
 #include "SkPath.h"
 
 #if SK_SUPPORT_GPU
@@ skipping 239 matching lines @@
     GrShape shape(path, style);
     args.fShape = &shape;
     args.fAntiAlias = false;
     tess.drawPath(args);
 }
 
 DEF_GPUTEST_FOR_ALL_CONTEXTS(TessellatingPathRendererTests, reporter, ctxInfo) {
     sk_sp<GrDrawContext> drawContext(ctxInfo.grContext()->newDrawContext(SkBackingFit::kApprox,
                                                                          800, 800,
                                                                          kSkia8888_GrPixelConfig,
+                                                                         nullptr,
                                                                          0,
                                                                          kTopLeft_GrSurfaceOrigin));
     if (!drawContext) {
         return;
     }
 
     GrTestTarget tt;
     ctxInfo.grContext()->getTestTarget(&tt, drawContext);
     GrResourceProvider* rp = tt.resourceProvider();
 
     test_path(drawContext.get(), rp, create_path_0());
     test_path(drawContext.get(), rp, create_path_1());
     test_path(drawContext.get(), rp, create_path_2());
     test_path(drawContext.get(), rp, create_path_3());
     test_path(drawContext.get(), rp, create_path_4());
     test_path(drawContext.get(), rp, create_path_5());
     test_path(drawContext.get(), rp, create_path_6());
     test_path(drawContext.get(), rp, create_path_7());
     test_path(drawContext.get(), rp, create_path_8());
     test_path(drawContext.get(), rp, create_path_9());
     test_path(drawContext.get(), rp, create_path_10());
     test_path(drawContext.get(), rp, create_path_11());
     test_path(drawContext.get(), rp, create_path_12());
     test_path(drawContext.get(), rp, create_path_13());
     test_path(drawContext.get(), rp, create_path_14());
     test_path(drawContext.get(), rp, create_path_15());
 }
 #endif