Implement a parser for Content-Disposition header fields

third_party/WebKit/Source/platform/network/ParsedContentDisposition.cpp

Index: third_party/WebKit/Source/platform/network/ParsedContentDisposition.cpp
diff --git a/third_party/WebKit/Source/platform/network/ParsedContentDisposition.cpp b/third_party/WebKit/Source/platform/network/ParsedContentDisposition.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..1ce57f79a39e7f347689642743ecfb3ebd9fbbf2
--- /dev/null
+++ b/third_party/WebKit/Source/platform/network/ParsedContentDisposition.cpp
@@ -0,0 +1,30 @@
+// Copyright 2017 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 "platform/network/ParsedContentDisposition.h"
+
+#include "platform/network/HeaderFieldTokenizer.h"
+
+namespace blink {
+
+ParsedContentDisposition::ParsedContentDisposition(
+    const String& content_disposition,
+    Mode mode) {
+  HeaderFieldTokenizer tokenizer(content_disposition);
+
+  StringView type;
+  if (!tokenizer.ConsumeToken(Mode::kNormal, type)) {
+    DVLOG(1) << "Failed to find `type' in '" << content_disposition << "'";
+    return;
+  }
+  type_ = type.ToString();
+
+  parameters_.ParseParameters(std::move(tokenizer), mode);
+}
+
+String ParsedContentDisposition::Filename() const {
+  return ParameterValueForName("filename");
+}
+
+}  // namespace blink