Revert "WebCrypto: Add SHA-1 support to crypto.subtle.digest()."

public/platform/WebCrypto.h

-/*
- * Copyright (C) 2013 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * 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.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef WebCrypto_h
-#define WebCrypto_h
-
-#include "WebCommon.h"
-
-namespace WebKit {
-
-class WebArrayBuffer;
-class WebCryptoAlgorithm;
-class WebCryptoKey;
-class WebCryptoOperation;
-class WebCryptoOperationResult;
-
-class WebCrypto {
-public:
-    // The following methods start a new asynchronous multi-part cryptographic
-    // operation.
-    //
-    //   - Returns 0 on failure
-    //   - The returned pointer must remain valid until the operation has
-    //     completed. After this, the embedder is responsible for freeing it.
-
-    virtual WebCryptoOperation* digest(const WebCryptoAlgorithm&) = 0;
-
-protected:
-    virtual ~WebCrypto() { }
-};
-
-// WebCryptoOperation represents a multi-part cryptographic operation. The
-// methods on this interface will be called in this order:
-//
-//   (1) 0 or more calls to process()
-//   (2) 0 or 1 calls to finish()
-//   (3) 0 or 1 calls to abort()
-//
-// Deletion of the WebCryptoOperation is the responsibility of the embedder.
-// However it MUST remain alive until either:
-//   (a) Blink has called this->abort()
-//   (b) The embedder has called result->setXXX()
-class WebCryptoOperation {
-public:
-    // Feeds data (bytes, size) to the operation.
-    //   - |bytes| may be 0 if |size| is 0
-    //   - |bytes| is valid only until process() returns
-    //   - process() will not be called after abort() or finish()
-    virtual void process(const unsigned char*, size_t) = 0;
-
-    // Cancels the in-progress operation.
-    //   * Implementations should delete |this| after aborting.
-    virtual void abort() = 0;
-
-    // Completes the operation and writes the result to the
-    // WebCryptoOperationResult* (henceforth called |result|).
-    //
-    // |result| can be set either synchronously or asynchronously. |result|
-    // will remain alive until the operation completes OR this->abort() is
-    // called. |result| SHOULD NOT be used after this->abort() has been called.
-    //
-    //   * Implementations should delete |this| after setting |result|.
-    virtual void finish(WebCryptoOperationResult*) = 0;
-
-protected:
-    virtual ~WebCryptoOperation() { }
-};
-
-// WebCryptoOperationResult is a handle for either synchronous or asynchronous
-// completion of WebCryptoOperation::finish().
-//
-// The result can be either an error or a value.
-//
-// Only one of the setXXX() methods should be called, corresponding to the
-// expected type of result for the operation. For instance digest() outputs an
-// ArrayBuffer whereas verify() outputs a boolean.
-//
-// Note on re-entrancy: After completing the result (i.e. calling one of the
-// setXXX() methods) the embedder must be ready to service other requests. In
-// other words, it should release any locks that would prevent other
-// WebCryptoOperations from being created or used.
-class WebCryptoOperationResult {
-public:
-    virtual void setArrayBuffer(const WebArrayBuffer&) = 0;
-
-protected:
-    virtual ~WebCryptoOperationResult() { }
-};
-
-} // namespace WebKit
-
-#endif