Expose crypto.getRandomValues() to workers.

Source/modules/crypto/RandomSource.h

 /*
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-#ifndef SubtleCrypto_h
-#define SubtleCrypto_h
+#ifndef RandomSource_h
+#define RandomSource_h
 
 #include "bindings/v8/ScriptWrappable.h"
 #include "wtf/Forward.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 
 namespace WebCore {
 
 typedef int ExceptionCode;
 
-class SubtleCrypto : public ScriptWrappable, public RefCounted<SubtleCrypto> {
+class RandomSource : public ScriptWrappable, public RefCounted<RandomSource> {
 public:
-    static PassRefPtr<SubtleCrypto> create() { return adoptRef(new SubtleCrypto()); }
+    static PassRefPtr<RandomSource> create() { return adoptRef(new RandomSource()); }
 
-private:
-    SubtleCrypto();
+    void getRandomValues(ArrayBufferView*, ExceptionCode&);
+
+protected:
+    RandomSource();
 };
 
 }
 
 #endif