add drawPicture variant that takes a matrix and paint

include/core/SkDevice.h

 /*
  * Copyright 2010 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkDevice_DEFINED
 #define SkDevice_DEFINED
 
@@ skipping 330 matching lines @@
     /**
      *  PRIVATE / EXPERIMENTAL -- do not call
      *  This entry point gives the backend an opportunity to take over the rendering
      *  of 'picture'. If optimization data is available (due to an earlier
      *  'optimize' call) this entry point should make use of it and return true
      *  if all rendering has been done. If false is returned, SkCanvas will
      *  perform its own rendering pass. It is acceptable for the backend
      *  to perform some device-specific warm up tasks and then let SkCanvas
      *  perform the main rendering loop (by return false from here).
      */
-    virtual bool EXPERIMENTAL_drawPicture(SkCanvas* canvas, const SkPicture* picture);
+    virtual bool EXPERIMENTAL_drawPicture(SkCanvas*, const SkPicture*, const SkMatrix*,
+                                          const SkPaint*);
 
 private:
     friend class SkCanvas;
     friend struct DeviceCM; //for setMatrixClip
     friend class SkDraw;
     friend class SkDrawIter;
     friend class SkDeviceFilteredPaint;
     friend class SkDeviceImageFilterProxy;
     friend class SkDeferredDevice;    // for newSurface
 
@@ skipping 24 matching lines @@
     SkMetaData* fMetaData;
 
 #ifdef SK_DEBUG
     bool        fAttachedToCanvas;
 #endif
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif