[Fetch API] Implement Request.formData and Response.formData.

third_party/WebKit/Source/platform/network/HTTPParsers.h

Index: third_party/WebKit/Source/platform/network/HTTPParsers.h
diff --git a/third_party/WebKit/Source/platform/network/HTTPParsers.h b/third_party/WebKit/Source/platform/network/HTTPParsers.h
index e5f1f0c16bfd00df4a8d8e1b7c3322b5df5677e6..3c072f8d252e52c7768f2d5f33380b614d400893 100644
--- a/third_party/WebKit/Source/platform/network/HTTPParsers.h
+++ b/third_party/WebKit/Source/platform/network/HTTPParsers.h
@@ -45,6 +45,7 @@
 
 namespace blink {
 
+class HTTPHeaderMap;
 class Suborigin;
 class ResourceResponse;
 
@@ -149,6 +150,14 @@ ParseContentTypeOptionsHeader(const String& header);
 
 // Returns true and stores the position of the end of the headers to |*end|
 // if the headers part ends in |bytes[0..size]|. Returns false otherwise.
+PLATFORM_EXPORT bool ParseMultipartFormHeadersFromBody(
+    const char* bytes,
+    size_t,
+    HTTPHeaderMap* header_fields,
+    size_t* end);
+
+// Returns true and stores the position of the end of the headers to |*end|
+// if the headers part ends in |bytes[0..size]|. Returns false otherwise.
 PLATFORM_EXPORT bool ParseMultipartHeadersFromBody(const char* bytes,
                                                    size_t,
                                                    ResourceResponse*,