diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/src/animator/SkDisplayAdd.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/src/animator/SkDisplayAdd.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,71 @@
+
+/*
+ * Copyright 2006 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 SkDisplayAdd_DEFINED
+#define SkDisplayAdd_DEFINED
+
+#include "SkDrawable.h"
+#include "SkMemberInfo.h"
+
+class SkAdd : public SkDrawable {
+    DECLARE_MEMBER_INFO(Add);
+    SkAdd();
+
+    enum Mode {
+        kMode_indirect,
+        kMode_immediate
+    };
+
+    virtual SkDisplayable* deepCopy(SkAnimateMaker* );
+    virtual bool draw(SkAnimateMaker& );
+#ifdef SK_DUMP_ENABLED
+    virtual void dump(SkAnimateMaker* );
+#endif
+    virtual bool enable(SkAnimateMaker& );
+    virtual bool hasEnable() const;
+    virtual void initialize();
+    virtual bool isDrawable() const;
+protected:
+//  struct _A {
+        Mode mode;
+        int32_t offset;
+        SkDrawable* use;
+        SkDrawable* where;  // if NULL, offset becomes index
+//  } A;
+private:
+    typedef SkDrawable INHERITED;
+};
+
+class SkClear : public SkDisplayable {
+    virtual bool enable(SkAnimateMaker& );
+};
+
+class SkMove : public SkAdd {
+    DECLARE_MEMBER_INFO(Move);
+private:
+    typedef SkAdd INHERITED;
+};
+
+class SkRemove : public SkAdd {
+    DECLARE_MEMBER_INFO(Remove);
+    SkRemove();
+protected:
+    SkBool fDelete;
+private:
+    friend class SkAdd;
+    typedef SkAdd INHERITED;
+};
+
+class SkReplace : public SkAdd {
+    DECLARE_MEMBER_INFO(Replace);
+private:
+    typedef SkAdd INHERITED;
+};
+
+#endif // SkDisplayAdd_DEFINED