Add SkColorSpace to GrDrawContext

src/gpu/GrClipMaskManager.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrClipMaskManager.h"
 #include "GrCaps.h"
 #include "GrDrawingManager.h"
@@ skipping 456 matching lines @@
 
     // There's no texture in the cache. Let's try to allocate it then.
     GrPixelConfig config = kRGBA_8888_GrPixelConfig;
     if (context->caps()->isConfigRenderable(kAlpha_8_GrPixelConfig, false)) {
         config = kAlpha_8_GrPixelConfig;
     }
 
     sk_sp<GrDrawContext> dc(context->newDrawContext(SkBackingFit::kApprox,
                                                     clipSpaceIBounds.width(),
                                                     clipSpaceIBounds.height(),
-                                                    config));
+                                                    config, nullptr));
     if (!dc) {
         return nullptr;
     }
     
     // The texture may be larger than necessary, this rect represents the part of the texture
     // we populate with a rasterization of the clip.
     SkIRect maskSpaceIBounds = SkIRect::MakeWH(clipSpaceIBounds.width(), clipSpaceIBounds.height());
 
     // The scratch texture that we are drawing into can be substantially larger than the mask. Only
     // clear the part that we care about.
@@ skipping 322 matching lines @@
     sk_sp<GrTexture> result(texProvider->createApproxTexture(desc));
     if (!result) {
         return nullptr;
     }
     result->resourcePriv().setUniqueKey(key);
 
     helper.toTexture(result.get());
 
     return result;
 }