Add window.crypto.subtle behind a runtime feature flag ("Crypto")

Source/modules/crypto/SubtleCrypto.cpp

Index: Source/modules/crypto/SubtleCrypto.cpp
diff --git a/Source/modules/indexeddb/IDBHistograms.h b/Source/modules/crypto/SubtleCrypto.cpp
similarity index 83%
copy from Source/modules/indexeddb/IDBHistograms.h
copy to Source/modules/crypto/SubtleCrypto.cpp
index d58f088bd93b68a5de5c4d85660c04991d7c8339..509d56585a70a4df25300660b6c51cdf48e25cf9 100644
--- a/Source/modules/indexeddb/IDBHistograms.h
+++ b/Source/modules/crypto/SubtleCrypto.cpp
@@ -10,7 +10,7 @@
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
- * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ * 3.  Neither the name of Google, Inc. ("Google") nor the names of
  *     its contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
  *
@@ -26,20 +26,18 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef IDBHistograms_h
-#define IDBHistograms_h
 
-namespace WebCore {
+#include "config.h"
+#include "modules/crypto/SubtleCrypto.h"
+
+#include "core/dom/ExceptionCode.h"
+#include "wtf/ArrayBufferView.h"
 
-enum IndexedDatabaseMethods {
-    IDBCreateObjectStoreCall,
-    IDBDeleteObjectStoreCall,
-    IDBTransactionCall,
-    IDBDeleteDatabaseCall,
-    IDBOpenCall,
-    IDBMethodsMax,
-};
+namespace WebCore {
 
+SubtleCrypto::SubtleCrypto()
+{
+    ScriptWrappable::init(this);
 }
 
-#endif
+}