WebCrypto: Add interfaces for importKey().

Source/modules/crypto/CryptoOperation.h

Index: Source/modules/crypto/CryptoOperation.h
diff --git a/Source/modules/crypto/CryptoOperation.h b/Source/modules/crypto/CryptoOperation.h
index 79e79a6c882b820b8226c5d01c00dc06f565f424..b53e5396f13f1b724b1824a9857db7b6dabaf845 100644
--- a/Source/modules/crypto/CryptoOperation.h
+++ b/Source/modules/crypto/CryptoOperation.h
@@ -34,21 +34,23 @@
 #include "bindings/v8/ScriptObject.h"
 #include "bindings/v8/ScriptWrappable.h"
 #include "modules/crypto/Algorithm.h"
-#include "public/platform/WebCrypto.h"
 #include "public/platform/WebCryptoAlgorithm.h"
+#include "public/platform/WebCrypto.h"
 #include "wtf/Forward.h"
 #include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
+#include "wtf/ThreadSafeRefCounted.h"
 
 namespace WebCore {
 
 class ScriptPromiseResolver;
 class ExceptionState;
 
-class CryptoOperation : public ScriptWrappable, public WebKit::WebCryptoOperationResult, public RefCounted<CryptoOperation> {
+typedef int ExceptionCode;
+
+class CryptoOperation : public ScriptWrappable, public ThreadSafeRefCounted<CryptoOperation> {
 public:
     ~CryptoOperation();
-    static PassRefPtr<CryptoOperation> create(const WebKit::WebCryptoAlgorithm&, ExceptionState*);
+    static PassRefPtr<CryptoOperation> create(const WebKit::WebCryptoAlgorithm&);
 
     CryptoOperation* process(ArrayBuffer* data);
     CryptoOperation* process(ArrayBufferView* data);
@@ -58,11 +60,12 @@ public:
 
     Algorithm* algorithm();
 
-    // Implementation of WebKit::WebCryptoOperationResult.
-    virtual void initializationFailed() OVERRIDE;
-    virtual void initializationSucceded(WebKit::WebCryptoOperation*) OVERRIDE;
-    virtual void completeWithError() OVERRIDE;
-    virtual void completeWithArrayBuffer(const WebKit::WebArrayBuffer&) OVERRIDE;
+    void initializationFailed();
+    void initializationSucceeded(WebKit::WebCryptoOperation*);
+    void completeWithError();
+    void completeWithArrayBuffer(const WebKit::WebArrayBuffer&);
+
+    CryptoOperation* returnValue(ExceptionState&);
 
 private:
     enum State {
@@ -82,7 +85,7 @@ private:
         Done,
     };
 
-    CryptoOperation(const WebKit::WebCryptoAlgorithm&, ExceptionState*);
+    explicit CryptoOperation(const WebKit::WebCryptoAlgorithm&);
 
     void process(const unsigned char*, size_t);
 
@@ -99,7 +102,7 @@ private:
 
     RefPtr<ScriptPromiseResolver> m_promiseResolver;
 
-    ExceptionState* m_exceptionState;
+    ExceptionCode m_exceptionCode;
 };
 
 } // namespace WebCore