Index: cc/rendering_stats_subscriber.h |
diff --git a/cc/rendering_stats_subscriber.h b/cc/rendering_stats_subscriber.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..48b66d036339d07bebdea51cb4a3fa8e7ac8284c |
--- /dev/null |
+++ b/cc/rendering_stats_subscriber.h |
@@ -0,0 +1,40 @@ |
+// 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 rendering_stats_subscriber_h |
+#define rendering_stats_subscriber_h |
+ |
+#include "base/memory/scoped_ptr.h" |
+#include "base/time.h" |
+ |
+#include <vector> |
+ |
+namespace cc { |
+ |
+class RenderingStatsSubscriber { |
+public: |
+ static scoped_ptr<RenderingStatsSubscriber> create(); |
+ |
+ virtual ~RenderingStatsSubscriber(); |
+ |
+ // Will have functions here to inform the subscriber of the goings on in the |
+ // compositor. |
+ void markBeginningOfFrame(base::TimeTicks timestamp); |
+ |
+ void handledScrollEvent(bool content_did_move); |
+ |
+ void getFPSAndStandardDeviation(double& average_fps, |
+ double& standard_deviation) const; |
+ |
+private: |
+ RenderingStatsSubscriber(); |
+ |
+ std::vector<base::TimeTicks> time_stamp_history_; |
+ bool is_scrolling_; |
+ bool has_scrolled_; |
+}; |
+ |
+} // namespace cc |
+ |
+#endif // rendering_stats_subscriber_h |