Initial import attempt, just to play with. Many things disabled/removed

ui/cc/cc/CCScheduler.h

Index: ui/cc/cc/CCScheduler.h
diff --git a/ui/cc/cc/CCScheduler.h b/ui/cc/cc/CCScheduler.h
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index 0000000000000000000000000000000000000000..3e6f7aa7b8157aa224609c29a37f45b696bbd612
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+++ b/ui/cc/cc/CCScheduler.h
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+/*
+ * Copyright (C) 2011 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef CCScheduler_h
+#define CCScheduler_h
+
+#include "cc/CCFrameRateController.h"
+#include "cc/CCSchedulerStateMachine.h"
+
+#include <wtf/Noncopyable.h>
+#include <wtf/PassOwnPtr.h>
+
+namespace WebCore {
+
+class CCThread;
+
+struct CCScheduledActionDrawAndSwapResult {
+    CCScheduledActionDrawAndSwapResult()
+            : didDraw(false)
+            , didSwap(false)
+    {
+    }
+    CCScheduledActionDrawAndSwapResult(bool didDraw, bool didSwap)
+            : didDraw(didDraw)
+            , didSwap(didSwap)
+    {
+    }
+    bool didDraw;
+    bool didSwap;
+};
+
+class CCSchedulerClient {
+public:
+    virtual bool canDraw() = 0;
+    virtual bool hasMoreResourceUpdates() const = 0;
+
+    virtual void scheduledActionBeginFrame() = 0;
+    virtual CCScheduledActionDrawAndSwapResult scheduledActionDrawAndSwapIfPossible() = 0;
+    virtual CCScheduledActionDrawAndSwapResult scheduledActionDrawAndSwapForced() = 0;
+    virtual void scheduledActionUpdateMoreResources() = 0;
+    virtual void scheduledActionCommit() = 0;
+    virtual void scheduledActionBeginContextRecreation() = 0;
+    virtual void scheduledActionAcquireLayerTexturesForMainThread() = 0;
+
+protected:
+    virtual ~CCSchedulerClient() { }
+};
+
+class CCScheduler : CCFrameRateControllerClient {
+    WTF_MAKE_NONCOPYABLE(CCScheduler);
+public:
+    static PassOwnPtr<CCScheduler> create(CCSchedulerClient* client, PassOwnPtr<CCFrameRateController> frameRateController)
+    {
+        return adoptPtr(new CCScheduler(client, frameRateController));
+    }
+
+    virtual ~CCScheduler();
+
+    void setCanBeginFrame(bool);
+
+    void setVisible(bool);
+
+    void setNeedsCommit();
+
+    // Like setNeedsCommit(), but ensures a commit will definitely happen even if we are not visible.
+    void setNeedsForcedCommit();
+
+    void setNeedsRedraw();
+
+    void setMainThreadNeedsLayerTextures();
+
+    // Like setNeedsRedraw(), but ensures the draw will definitely happen even if we are not visible.
+    void setNeedsForcedRedraw();
+
+    void beginFrameComplete();
+    void beginFrameAborted();
+
+    void setMaxFramesPending(int);
+    void didSwapBuffersComplete();
+
+    void didLoseContext();
+    void didRecreateContext();
+
+    bool commitPending() const { return m_stateMachine.commitPending(); }
+    bool redrawPending() const { return m_stateMachine.redrawPending(); }
+
+    // CCFrameRateControllerClient implementation
+    virtual void vsyncTick() OVERRIDE;
+
+private:
+    CCScheduler(CCSchedulerClient*, PassOwnPtr<CCFrameRateController>);
+
+    CCSchedulerStateMachine::Action nextAction();
+    void processScheduledActions();
+
+    CCSchedulerClient* m_client;
+    OwnPtr<CCFrameRateController> m_frameRateController;
+    CCSchedulerStateMachine m_stateMachine;
+    bool m_updateMoreResourcesPending;
+};
+
+}
+
+#endif // CCScheduler_h