Fix ImageData constructor infelicity.

Source/core/html/ImageData.h

Index: Source/core/html/ImageData.h
diff --git a/Source/core/html/ImageData.h b/Source/core/html/ImageData.h
index 91e8b55c512b723bbc48bf40cd5459c712e2b9dc..d9e89a581e702093b461746a137bdda2917e6b77 100644
--- a/Source/core/html/ImageData.h
+++ b/Source/core/html/ImageData.h
@@ -46,6 +46,7 @@ public:
     static PassRefPtrWillBeRawPtr<ImageData> create(const IntSize&);
     static PassRefPtrWillBeRawPtr<ImageData> create(const IntSize&, PassRefPtr<DOMUint8ClampedArray>);
     static PassRefPtrWillBeRawPtr<ImageData> create(unsigned width, unsigned height, ExceptionState&);
+    static PassRefPtrWillBeRawPtr<ImageData> create(DOMUint8ClampedArray*, unsigned width, ExceptionState&);
     static PassRefPtrWillBeRawPtr<ImageData> create(DOMUint8ClampedArray*, unsigned width, unsigned height, ExceptionState&);
 
     IntSize size() const { return m_size; }
@@ -62,6 +63,8 @@ private:
     explicit ImageData(const IntSize&);
     ImageData(const IntSize&, PassRefPtr<DOMUint8ClampedArray>);
 
+    static bool validateConstructorArguments(DOMUint8ClampedArray*, unsigned width, unsigned&, ExceptionState&);
+
     IntSize m_size;
     RefPtr<DOMUint8ClampedArray> m_data;
 };