Plumbing for using a BBH in SkRecordDraw.

src/core/SkRecordDraw.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkRecordDraw_DEFINED
 #define SkRecordDraw_DEFINED
 
-#include "SkRecord.h"
+#include "SkBBoxHierarchy.h"
 #include "SkCanvas.h"
 #include "SkDrawPictureCallback.h"
+#include "SkRecord.h"
+
+// Fill a BBH to be used by SkRecordDraw to accelerate playback.
+void SkRecordFillBounds(const SkRecord&, SkBBoxHierarchy*);
 
 // Draw an SkRecord into an SkCanvas.  A convenience wrapper around SkRecords::Draw.
-void SkRecordDraw(const SkRecord&, SkCanvas*, SkDrawPictureCallback* = NULL);
+void SkRecordDraw(const SkRecord&, SkCanvas*, const SkBBoxHierarchy*, SkDrawPictureCallback*);
 
 namespace SkRecords {
 
 // This is an SkRecord visitor that will draw that SkRecord to an SkCanvas.
 class Draw : SkNoncopyable {
 public:
     explicit Draw(SkCanvas* canvas)
         : fInitialCTM(canvas->getTotalMatrix()), fCanvas(canvas), fIndex(0) {}
 
     unsigned index() const { return fIndex; }
     void next() { ++fIndex; }
 
     template <typename T> void operator()(const T& r) {
         this->draw(r);
     }
 
 private:
     // No base case, so we'll be compile-time checked that we implement all possibilities.
     template <typename T> void draw(const T&);
 
     const SkMatrix fInitialCTM;
     SkCanvas* fCanvas;
     unsigned fIndex;
 };
 
 }  // namespace SkRecords
 
 #endif//SkRecordDraw_DEFINED