Add support for a new GPU interface

src/gpu/GrContextFactory.cpp

 
 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrContextFactory.h"
 
@@ skipping 58 matching lines @@
             return NULL;
         }
     } else {
         if (!glInterface->hasExtension("GL_NV_path_rendering")) {
             return NULL;
         }
     }
 
     glCtx->makeCurrent();
     GrBackendContext p3dctx = reinterpret_cast<GrBackendContext>(glInterface.get());
+#ifdef SK_VULKAN
+    grCtx.reset(GrContext::Create(kVulkan_GrBackend, p3dctx, fGlobalOptions));
+#else
     grCtx.reset(GrContext::Create(kOpenGL_GrBackend, p3dctx, fGlobalOptions));
+#endif
     if (!grCtx.get()) {
         return NULL;
     }
     // Warn if path rendering support is not available for the NVPR type.
     if (kNVPR_GLContextType == type) {
         if (!grCtx->caps()->shaderCaps()->pathRenderingSupport()) {
             GrGpu* gpu = grCtx->getGpu();
             const GrGLContext* ctx = gpu->glContextForTesting();
             if (ctx) {
                 const GrGLubyte* verUByte;
@@ skipping 10 matching lines @@
     }
 
     GPUContext& ctx = fContexts.push_back();
     ctx.fGLContext = glCtx.get();
     ctx.fGLContext->ref();
     ctx.fGrContext = grCtx.get();
     ctx.fGrContext->ref();
     ctx.fType = type;
     return ctx.fGrContext;
 }