1 files changed, 41 insertions, 0 deletions
diff --git a/cc/CCLayerTreeHostClient.h b/cc/CCLayerTreeHostClient.h
new file mode 100644
index 0000000..389e5dc
--- /dev/null
+++ b/cc/CCLayerTreeHostClient.h
@@ -0,0 +1,41 @@
+// Copyright 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CCLayerTreeHostClient_h
+#define CCLayerTreeHostClient_h
+
+#include <wtf/PassOwnPtr.h>
+
+namespace WebKit {
+class WebCompositorOutputSurface;
+}
+
+namespace WebCore {
+class IntSize;
+
+class CCLayerTreeHostClient {
+public:
+    virtual void willBeginFrame() = 0;
+    // Marks finishing compositing-related tasks on the main thread. In threaded mode, this corresponds to didCommit().
+    virtual void didBeginFrame() = 0;
+    virtual void animate(double frameBeginTime) = 0;
+    virtual void layout() = 0;
+    virtual void applyScrollAndScale(const IntSize& scrollDelta, float pageScale) = 0;
+    virtual PassOwnPtr<WebKit::WebCompositorOutputSurface> createOutputSurface() = 0;
+    virtual void didRecreateOutputSurface(bool success) = 0;
+    virtual void willCommit() = 0;
+    virtual void didCommit() = 0;
+    virtual void didCommitAndDrawFrame() = 0;
+    virtual void didCompleteSwapBuffers() = 0;
+
+    // Used only in the single-threaded path.
+    virtual void scheduleComposite() = 0;
+
+protected:
+    virtual ~CCLayerTreeHostClient() { }
+};
+
+}
+
+#endif // CCLayerTreeHostClient_h