| Index: Source/core/frame/UseCounter.cpp
 | 
| diff --git a/Source/core/frame/UseCounter.cpp b/Source/core/frame/UseCounter.cpp
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| index c0f76a716c25d8d8fad864d87ab5d28365cb7bd0..3cb0eeeedb41b9f5df0ca4a8fe2fd2f3b60198ca 100644
 | 
| --- a/Source/core/frame/UseCounter.cpp
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| +++ b/Source/core/frame/UseCounter.cpp
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| @@ -495,6 +495,8 @@ int UseCounter::mapCSSPropertyIdToCSSSampleIdForHistogram(int id)
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|      case CSSPropertyMotionPosition: return 458;
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|      case CSSPropertyMotionRotation: return 459;
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|      case CSSPropertyMotion: return 460;
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| +    case CSSPropertyX: return 461;
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| +    case CSSPropertyY: return 462;
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|  
 | 
|      // 1. Add new features above this line (don't change the assigned numbers of the existing
 | 
|      // items).
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| @@ -511,7 +513,7 @@ int UseCounter::mapCSSPropertyIdToCSSSampleIdForHistogram(int id)
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|      return 0;
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|  }
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|  
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| -static int maximumCSSSampleId() { return 460; }
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| +static int maximumCSSSampleId() { return 462; }
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|  
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|  void UseCounter::muteForInspector()
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|  {
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| 
 |