Chromium Code Reviews| Index: chrome/common/metrics_helpers.h | 
| diff --git a/chrome/common/metrics_helpers.h b/chrome/common/metrics_helpers.h | 
| index bd18b888e80407a62b1627863735b82152ef6ed1..3de3fbdd6ccb66fe8c6fb0c1d0ec2c05336c00e5 100644 | 
| --- a/chrome/common/metrics_helpers.h | 
| +++ b/chrome/common/metrics_helpers.h | 
| @@ -99,9 +99,7 @@ class MetricsLogBase { | 
| version_extension_ = extension; | 
| } | 
| - virtual MetricsLog* AsMetricsLog() { | 
| - return NULL; | 
| - } | 
| + virtual MetricsLog* AsMetricsLog(); | 
| protected: | 
| class XmlWrapper; |