| Index: chrome/browser/page_load_metrics/metrics_web_contents_observer.h
 | 
| diff --git a/chrome/browser/page_load_metrics/metrics_web_contents_observer.h b/chrome/browser/page_load_metrics/metrics_web_contents_observer.h
 | 
| index 3d6daece59a17bb31c4fb1ed0d43619187a96c06..0fb13b0243ef44ad0a3dbad36027aa87197c6e5b 100644
 | 
| --- a/chrome/browser/page_load_metrics/metrics_web_contents_observer.h
 | 
| +++ b/chrome/browser/page_load_metrics/metrics_web_contents_observer.h
 | 
| @@ -329,6 +329,8 @@ class MetricsWebContentsObserver
 | 
|        content::NavigationHandle* navigation_handle) override;
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|    void NavigationStopped() override;
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|    void OnInputEvent(const blink::WebInputEvent& event) override;
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| +  void OnInputEventAck(const blink::WebInputEvent& event, bool is_synthetic)
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| +      override {};
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|    void WasShown() override;
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|    void WasHidden() override;
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|    void RenderProcessGone(base::TerminationStatus status) override;
 | 
| 
 |