Allow tail to not be trimmed.

url/third_party/mozilla/url_parse.h

Index: url/third_party/mozilla/url_parse.h
diff --git a/url/third_party/mozilla/url_parse.h b/url/third_party/mozilla/url_parse.h
index 345d1a6670080e563531920170a5552112efa44b..25612ea911ae84ad2ba31c67cfd885011d1e56b8 100644
--- a/url/third_party/mozilla/url_parse.h
+++ b/url/third_party/mozilla/url_parse.h
@@ -238,10 +238,12 @@ URL_EXPORT void ParseStandardURL(const base::char16* url,
 // section but that aren't file URLs either. The scheme is parsed, and
 // everything after the scheme is considered as the path. This is used for
 // things like "about:" and "javascript:"
-URL_EXPORT void ParsePathURL(const char* url, int url_len, Parsed* parsed);
+URL_EXPORT void ParsePathURL(const char* url, int url_len, Parsed* parsed,
+                             bool trim_tail = true);
 URL_EXPORT void ParsePathURL(const base::char16* url,
                              int url_len,
-                             Parsed* parsed);
+                             Parsed* parsed,
+                             bool trim_tail = true);
 
 // FileURL is for file URLs. There are some special rules for interpreting
 // these.