parseHTTPHeaders should return the number of consumed bytes.

Source/platform/network/HTTPRequest.cpp

Index: Source/platform/network/HTTPRequest.cpp
diff --git a/Source/platform/network/HTTPRequest.cpp b/Source/platform/network/HTTPRequest.cpp
index cd1694e56032c0760a6fbd8be3c5904314ce3563..b0533ee09081866397e932fac4053f6ec14cd47b 100644
--- a/Source/platform/network/HTTPRequest.cpp
+++ b/Source/platform/network/HTTPRequest.cpp
@@ -81,7 +81,7 @@ size_t HTTPRequest::parseHeaders(const char* data, size_t length, String& failur
     const char* end = data + length;
     AtomicString name;
     AtomicString value;
-    for (; p < data + length; p++) {
+    while (p < data + length) {
         size_t consumedLength = parseHTTPHeader(p, end - p, failureReason, name, value);
         if (!consumedLength)
             return 0;