Allow no content-type for POST, PUT and PATCH methods.

net/url_request/url_fetcher.h

Index: net/url_request/url_fetcher.h
diff --git a/net/url_request/url_fetcher.h b/net/url_request/url_fetcher.h
index 6d3f0e99862b40599fae667c2b35f9af22bf0e08..46a2d1774a62a8a1b11f3550925757e82c5f5d1f 100644
--- a/net/url_request/url_fetcher.h
+++ b/net/url_request/url_fetcher.h
@@ -83,8 +83,9 @@ class NET_EXPORT URLFetcher {
     PUT,
     PATCH,
 
-    // This is POST method with no body, no content-type header and
-    // no content-length header.
+    // DEPRECATED: Now POST should work well for empty body, and this value
+    //   will be removed soon.
+    // This is POST method with no body, and no content-type header.
     POST_WITHOUT_BODY,
   };