diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/src/core/SkBBoxHierarchyRecord.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/src/core/SkBBoxHierarchyRecord.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,50 @@
+
+/*
+ * 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 SkRTreeCanvas_DEFINED
+#define SkRTreeCanvas_DEFINED
+
+#include "SkBBoxHierarchy.h"
+#include "SkBBoxRecord.h"
+
+/**
+ * This records bounding box information into an SkBBoxHierarchy, and clip/transform information
+ * into an SkPictureStateTree to allow for efficient culling and correct playback of draws.
+ */
+class SkBBoxHierarchyRecord : public SkBBoxRecord, public SkBBoxHierarchyClient {
+public:
+    /** This will take a ref of h */
+    SkBBoxHierarchyRecord(const SkISize& size, uint32_t recordFlags, SkBBoxHierarchy* h);
+
+    virtual void handleBBox(const SkRect& bounds) SK_OVERRIDE;
+
+    // Implementation of the SkBBoxHierarchyClient interface
+    virtual bool shouldRewind(void* data) SK_OVERRIDE;
+
+protected:
+    virtual void willSave(SaveFlags) SK_OVERRIDE;
+    virtual SaveLayerStrategy willSaveLayer(const SkRect*, const SkPaint*, SaveFlags) SK_OVERRIDE;
+    virtual void willRestore() SK_OVERRIDE;
+
+    virtual void didTranslate(SkScalar, SkScalar) SK_OVERRIDE;
+    virtual void didScale(SkScalar, SkScalar) SK_OVERRIDE;
+    virtual void didRotate(SkScalar) SK_OVERRIDE;
+    virtual void didSkew(SkScalar, SkScalar) SK_OVERRIDE;
+    virtual void didConcat(const SkMatrix&) SK_OVERRIDE;
+    virtual void didSetMatrix(const SkMatrix&) SK_OVERRIDE;
+
+    virtual void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
+    virtual void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
+    virtual void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
+    virtual void onClipRegion(const SkRegion&, SkRegion::Op) SK_OVERRIDE;
+
+private:
+    typedef SkBBoxRecord INHERITED;
+};
+
+#endif