introduce Props to surface

include/core/SkCanvas.h

Index: include/core/SkCanvas.h
diff --git a/include/core/SkCanvas.h b/include/core/SkCanvas.h
index 5088d7ded5268b9e86808c3c7d0148c7bcc891a4..5542dd49c1e66e3ec0e904d3ecf93a1f47ba1cf1 100644
--- a/include/core/SkCanvas.h
+++ b/include/core/SkCanvas.h
@@ -16,6 +16,7 @@
 #include "SkRefCnt.h"
 #include "SkPath.h"
 #include "SkRegion.h"
+#include "SkSurfaceProps.h"
 #include "SkXfermode.h"
 
 #ifdef SK_SUPPORT_LEGACY_DRAWTEXT_VIRTUAL
@@ -135,7 +136,7 @@ public:
         @param bitmap   Specifies a bitmap for the canvas to draw into. Its
                         structure are copied to the canvas.
     */
-    explicit SkCanvas(const SkBitmap& bitmap);
+    SkCanvas(const SkBitmap& bitmap, const SkSurfaceProps* = NULL);
     virtual ~SkCanvas();
 
     SkMetaData& getMetaData();
@@ -1282,6 +1283,8 @@ private:
     // the first N recs that can fit here mean we won't call malloc
     uint32_t    fMCRecStorage[32];
 
+    const SkSurfaceProps fProps;
+
     int         fSaveLayerCount;    // number of successful saveLayer calls
     int         fCullCount;         // number of active culls