WebCrypto: Add interfaces for importKey().

Source/modules/crypto/KeyOperation.h

Index: Source/modules/crypto/KeyOperation.h
diff --git a/Source/modules/crypto/SubtleCrypto.h b/Source/modules/crypto/KeyOperation.h
similarity index 63%
copy from Source/modules/crypto/SubtleCrypto.h
copy to Source/modules/crypto/KeyOperation.h
index 3df45a197d05977e28b5400d8cbc27464cdfb46e..50c3ba635d2940e71c4c0111dde3f8053b1d62de 100644
--- a/Source/modules/crypto/SubtleCrypto.h
+++ b/Source/modules/crypto/KeyOperation.h
@@ -28,34 +28,54 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef SubtleCrypto_h
-#define SubtleCrypto_h
+#ifndef KeyOperation_h
+#define KeyOperation_h
 
-#include "bindings/v8/ScriptWrappable.h"
+#include "bindings/v8/ScriptObject.h"
 #include "wtf/Forward.h"
 #include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
+#include "wtf/RefPtr.h"
+#include "wtf/ThreadSafeRefCounted.h"
 
-namespace WebCore {
+namespace WebKit {
+class WebCryptoKeyOperation;
+class WebCryptoKey;
+}
 
-class CryptoOperation;
-class Dictionary;
+namespace WebCore {
 
 typedef int ExceptionCode;
+class ScriptPromiseResolver;
+
+// todo: m_exceptionCode
+//       create the promise resolver.
 
-class SubtleCrypto : public ScriptWrappable, public RefCounted<SubtleCrypto> {
+class KeyOperation : public ThreadSafeRefCounted<KeyOperation> {
 public:
-    static PassRefPtr<SubtleCrypto> create() { return adoptRef(new SubtleCrypto()); }
+    KeyOperation();
+    ~KeyOperation();
 
-    PassRefPtr<CryptoOperation> encrypt(const Dictionary&, ExceptionCode&);
-    PassRefPtr<CryptoOperation> decrypt(const Dictionary&, ExceptionCode&);
-    PassRefPtr<CryptoOperation> sign(const Dictionary&, ExceptionCode&);
-    // Note that this is not named "verify" because when compiling on Mac that expands to a macro and breaks.
-    PassRefPtr<CryptoOperation> verifySignature(const Dictionary&, ExceptionCode&);
-    PassRefPtr<CryptoOperation> digest(const Dictionary&, ExceptionCode&);
+    // Implementation of WebKit::WebCryptoKeyOperationResult.
+    void initializationFailed();
+    void initializationSucceeded(WebKit::WebCryptoKeyOperation*);
+    void completeWithError();
+    void completeWithKey(const WebKit::WebCryptoKey&);
+
+    ScriptObject returnValue(ExceptionCode&);
 
 private:
-    SubtleCrypto();
+    enum State {
+        Initializing,
+        InProgress,
+        Done,
+    };
+
+    ScriptPromiseResolver* promiseResolver();
+
+    State m_state;
+    WebKit::WebCryptoKeyOperation* m_impl;
+    ExceptionCode m_exceptionCode;
+    RefPtr<ScriptPromiseResolver> m_promiseResolver;
 };
 
 } // namespace WebCore