Remove unused exception types from WebCrypto. (Chromium-side)

content/child/webcrypto/status.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/child/webcrypto/status.h"
 
 #include "base/format_macros.h"
 #include "base/strings/stringprintf.h"
 
 namespace content {
@@ skipping 186 matching lines @@
 
 Status Status::ErrorUnsupported() {
   return ErrorUnsupported("The requested operation is unsupported");
 }
 
 Status Status::ErrorUnsupported(const std::string& message) {
   return Status(blink::WebCryptoErrorTypeNotSupported, message);
 }
 
 Status Status::ErrorUnexpected() {
-  return Status(blink::WebCryptoErrorTypeUnknown,
+  return Status(blink::WebCryptoErrorTypeOperation,
                 "Something unexpected happened...");
 }
 
 Status Status::ErrorInvalidAesGcmTagLength() {
   return Status(
       blink::WebCryptoErrorTypeOperation,
       "The tag length is invalid: Must be 32, 64, 96, 104, 112, 120, or 128 "
       "bits");
 }
 
@@ skipping 115 matching lines @@
       error_type_(error_type),
       error_details_(error_details_utf8) {
 }
 
 Status::Status(Type type) : type_(type) {
 }
 
 }  // namespace webcrypto
 
 }  // namespace content