Fix ftp subresource deprecation message.

third_party/WebKit/Source/core/frame/Deprecation.cpp

 // Copyright 2016 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 "core/frame/Deprecation.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/frame/FrameConsole.h"
 #include "core/frame/LocalFrame.h"
@@ skipping 234 matching lines @@
     case WebFeature::kPrefixedWindowURL:
       return replacedBy("'webkitURL'", "'URL'");
 
     case WebFeature::kRangeExpand:
       return replacedBy("'Range.expand()'", "'Selection.modify()'");
 
     // Blocked subresource requests:
     case WebFeature::kLegacyProtocolEmbeddedAsSubresource:
       return String::Format(
           "Subresource requests using legacy protocols (like `ftp:`) are "
-          "are blocked. Please deliver web-accessible resources over modern "
+          "blocked. Please deliver web-accessible resources over modern "
           "protocols like HTTPS. See "
           "https://www.chromestatus.com/feature/5709390967472128 for details.");
 
     case WebFeature::kRequestedSubresourceWithEmbeddedCredentials:
       return "Subresource requests whose URLs contain embedded credentials "
              "(e.g. `https://user:pass@host/`) are blocked. See "
              "https://www.chromestatus.com/feature/5669008342777856 for more "
              "details.";
 
     // Powerful features on insecure origins (https://goo.gl/rStTGz)
@@ skipping 184 matching lines @@
           "https://goo.gl/EGXzpw for possible migration paths.",
           milestoneString(M65));
 
     // Features that aren't deprecated don't have a deprecation message.
     default:
       return String();
   }
 }
 
 }  // namespace blink