| Index: Source/core/testing/Internals.idl
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| diff --git a/Source/core/testing/Internals.idl b/Source/core/testing/Internals.idl
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| index 67fdb0c7cbabe77bc73126172f07a101dd0d2d1d..8d1e3ce0c978620af22c6a8a3a700dd41320b646 100644
 | 
| --- a/Source/core/testing/Internals.idl
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| +++ b/Source/core/testing/Internals.idl
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| @@ -282,4 +282,7 @@
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|      // before calling setNetworkConnectionInfo.
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|      void setNetworkStateNotifierTestOnly(boolean testOnly);
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|      [RaisesException] void setNetworkConnectionInfo(DOMString type);
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| +
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| +    // This function is for testing HitRegions on Canvas2D.
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| +    unsigned long countHitRegions(CanvasRenderingContext2D context);
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|  };
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| 
 |