Use net::HttpContentTypeDisposition in blink

third_party/WebKit/Source/core/loader/DocumentLoader.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2011 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 489 matching lines @@
 bool DocumentLoader::ShouldContinueForResponse() const {
   if (substitute_data_.IsValid())
     return true;
 
   int status_code = response_.HttpStatusCode();
   if (status_code == 204 || status_code == 205) {
     // The server does not want us to replace the page contents.
     return false;
   }
 
-  if (GetContentDispositionType(response_.HttpHeaderField(
-          HTTPNames::Content_Disposition)) == kContentDispositionAttachment) {
+  if (IsContentDispositionAttachment(
+          response_.HttpHeaderField(HTTPNames::Content_Disposition))) {
     // The server wants us to download instead of replacing the page contents.
     // Downloading is handled by the embedder, but we still get the initial
     // response so that we can ignore it and clean up properly.
     return false;
   }
 
   if (!CanShowMIMEType(response_.MimeType(), frame_))
     return false;
   return true;
 }
@@ skipping 570 matching lines @@
                      InstallNewDocumentReason::kJavascriptURL,
                      kForceSynchronousParsing, KURL());
   if (!source.IsNull())
     writer_->AppendReplacingData(source);
   EndWriting();
 }
 
 DEFINE_WEAK_IDENTIFIER_MAP(DocumentLoader);
 
 }  // namespace blink