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diff --git a/libs/hwui/renderthread/DrawFrameTask.h b/libs/hwui/renderthread/DrawFrameTask.h
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+++ b/libs/hwui/renderthread/DrawFrameTask.h
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+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef DRAWFRAMETASK_H
+#define DRAWFRAMETASK_H
+
+#include <vector>
+
+#include <utils/Condition.h>
+#include <utils/Mutex.h>
+#include <utils/StrongPointer.h>
+
+#include "RenderTask.h"
+
+#include "../Rect.h"
+#include "../TreeInfo.h"
+
+namespace android {
+namespace uirenderer {
+
+class DeferredLayerUpdater;
+class DisplayListData;
+class RenderNode;
+
+namespace renderthread {
+
+class CanvasContext;
+class RenderThread;
+
+enum SyncResult {
+    kSync_OK = 0,
+    kSync_UIRedrawRequired = 1 << 1,
+};
+
+/*
+ * This is a special Super Task. It is re-used multiple times by RenderProxy,
+ * and contains state (such as layer updaters & new DisplayListDatas) that is
+ * tracked across many frames not just a single frame.
+ * It is the sync-state task, and will kick off the post-sync draw
+ */
+class DrawFrameTask : public RenderTask {
+public:
+    DrawFrameTask();
+    virtual ~DrawFrameTask();
+
+    void setContext(RenderThread* thread, CanvasContext* context);
+
+    void pushLayerUpdate(DeferredLayerUpdater* layer);
+    void removeLayerUpdate(DeferredLayerUpdater* layer);
+
+    void setDensity(float density) { mDensity = density; }
+    int drawFrame(nsecs_t frameTimeNanos, nsecs_t recordDurationNanos);
+
+    virtual void run();
+
+private:
+    void postAndWait();
+    bool syncFrameState(TreeInfo& info);
+    void unblockUiThread();
+
+    Mutex mLock;
+    Condition mSignal;
+
+    RenderThread* mRenderThread;
+    CanvasContext* mContext;
+
+    /*********************************************
+     *  Single frame data
+     *********************************************/
+    nsecs_t mFrameTimeNanos;
+    nsecs_t mRecordDurationNanos;
+    float mDensity;
+    std::vector< sp<DeferredLayerUpdater> > mLayers;
+
+    int mSyncResult;
+};
+
+} /* namespace renderthread */
+} /* namespace uirenderer */
+} /* namespace android */
+
+#endif /* DRAWFRAMETASK_H */