introduce Props to surface

src/image/SkSurface_Base.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_Base_DEFINED
 #define SkSurface_Base_DEFINED
 
 #include "SkSurface.h"
 #include "SkCanvas.h"
 
 class SkSurface_Base : public SkSurface {
 public:
-    SkSurface_Base(int width, int height);
-    explicit SkSurface_Base(const SkImageInfo&);
+    static Props MakeDefaultProps();
+
+    SkSurface_Base(int width, int height, const Props&);
+    SkSurface_Base(const SkImageInfo&, const Props&);
     virtual ~SkSurface_Base();
 
     /**
      *  Allocate a canvas that will draw into this surface. We will cache this
      *  canvas, to return the same object to the caller multiple times. We
      *  take ownership, and will call unref() on the canvas when we go out of
      *  scope.
      */
     virtual SkCanvas* onNewCanvas() = 0;
 
@@ skipping 60 matching lines @@
 
 SkImage* SkSurface_Base::getCachedImage() {
     if (NULL == fCachedImage) {
         fCachedImage = this->onNewImageSnapshot();
         SkASSERT(!fCachedCanvas || fCachedCanvas->getSurfaceBase() == this);
     }
     return fCachedImage;
 }
 
 #endif