Fix legacy NewRenderTarget factory

include/core/SkSurface.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkSurface_DEFINED
 #define SkSurface_DEFINED
 
@@ skipping 151 matching lines @@
                                                  const SkSurfaceProps* props) {
         return MakeFromBackendRenderTarget(ctx, d, props).release();
     }
     static SkSurface* NewFromBackendTextureAsRenderTarget(GrContext* ctx,
                                                           const GrBackendTextureDesc& desc,
                                                           const SkSurfaceProps* props) {
         return MakeFromBackendTextureAsRenderTarget(ctx, desc, props).release();
     }
     static SkSurface* NewRenderTarget(GrContext* ctx, SkBudgeted b, const SkImageInfo& info,
                                       int sampleCount, const SkSurfaceProps* props = NULL) {
-        return MakeRenderTarget(ctx, b, info, sampleCount, props, a).release();
+        return MakeRenderTarget(ctx, b, info, sampleCount, props).release();
     }
     static SkSurface* NewRenderTarget(GrContext* gr, SkBudgeted b, const SkImageInfo& info) {
         return NewRenderTarget(gr, b, info, 0);
     }
     SkSurface* newSurface(const SkImageInfo& info) { return this->makeSurface(info).release(); }
 #endif
 
     int width() const { return fWidth; }
     int height() const { return fHeight; }
 
@@ skipping 183 matching lines @@
 private:
     const SkSurfaceProps fProps;
     const int            fWidth;
     const int            fHeight;
     uint32_t             fGenerationID;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif