| Index: cc/scheduler/begin_frame_source.h
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| diff --git a/cc/scheduler/begin_frame_source.h b/cc/scheduler/begin_frame_source.h
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| index 1e1938ba40f3967d652d3b3625950d6fb11d4a73..9d5ce242b27d797005ae034207c49f2b2bed5fd6 100644
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| --- a/cc/scheduler/begin_frame_source.h
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| +++ b/cc/scheduler/begin_frame_source.h
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| @@ -170,7 +170,7 @@ class CC_EXPORT SyntheticBeginFrameSource : public BeginFrameSource {
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|  };
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|  
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|  // A frame source which calls BeginFrame (at the next possible time) as soon as
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| -// remaining frames reaches zero.
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| +// an observer acknowledges the prior BeginFrame.
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|  class CC_EXPORT BackToBackBeginFrameSource : public SyntheticBeginFrameSource,
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|                                               public DelayBasedTimeSourceClient {
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|   public:
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| 
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