[FeaturePolicy] Initial implementation of Feature Policy

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 6c84e4aca6979e1e91c5efe5c087231321c9afa9..681f1407577ee11af942769bce2edf7c8f587807 100644
--- a/third_party/WebKit/Source/platform/network/HTTPParsers.h
+++ b/third_party/WebKit/Source/platform/network/HTTPParsers.h
@@ -32,12 +32,15 @@
 #define HTTPParsers_h
 
 #include "platform/PlatformExport.h"
+#include "platform/json/JSONValues.h"
 #include "wtf/Allocator.h"
 #include "wtf/Forward.h"
 #include "wtf/HashSet.h"
 #include "wtf/Vector.h"
 #include "wtf/text/StringHash.h"
 
+#include <memory>
+
 namespace blink {
 
 class Suborigin;
@@ -157,6 +160,12 @@ PLATFORM_EXPORT bool parseMultipartHeadersFromBody(const char* bytes,
                                                    ResourceResponse*,
                                                    size_t* end);
 
+// Parses a header value containing JSON data, according to
+// https://tools.ietf.org/html/draft-ietf-httpbis-jfv-01
+// Returns an empty unique_ptr if the header cannot be parsed as JSON.
+PLATFORM_EXPORT std::unique_ptr<JSONArray> parseJSONHeader(
+    const String& header);
+
 }  // namespace blink
 
 #endif