GrSWMaskHelper and GrSoftwarePathRenderer only need the textureProvider (not GrContext)

src/gpu/GrDrawingManager.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 "GrDrawContext.h"
 #include "GrDrawingManager.h"
 #include "GrDrawTarget.h"
@@ skipping 133 matching lines @@
                                                   GrPathRendererChain::DrawType drawType,
                                                   GrPathRenderer::StencilSupport* stencilSupport) {
 
     if (!fPathRendererChain) {
         fPathRendererChain = new GrPathRendererChain(fContext);
     }
 
     GrPathRenderer* pr = fPathRendererChain->getPathRenderer(args, drawType, stencilSupport);
     if (!pr && allowSW) {
         if (!fSoftwarePathRenderer) {
-            fSoftwarePathRenderer = new GrSoftwarePathRenderer(fContext);
+            fSoftwarePathRenderer = new GrSoftwarePathRenderer(fContext->textureProvider());
         }
         pr = fSoftwarePathRenderer;
     }
 
     return pr;
 }
 
 sk_sp<GrDrawContext> GrDrawingManager::drawContext(sk_sp<GrRenderTarget> rt,
                                                    const SkSurfaceProps* surfaceProps) {
     if (this->wasAbandoned()) {
@@ skipping 14 matching lines @@
                                                         fContext, this, std::move(rt), 
                                                         surfaceProps,
                                                         fContext->getAuditTrail(), fSingleOwner));
         }
     }
 
     return sk_sp<GrDrawContext>(new GrDrawContext(fContext, this, std::move(rt), surfaceProps,
                                                   fContext->getAuditTrail(),
                                                   fSingleOwner));
 }