Allow tail to not be trimmed.

url/third_party/mozilla/url_parse.cc

Index: url/third_party/mozilla/url_parse.cc
diff --git a/url/third_party/mozilla/url_parse.cc b/url/third_party/mozilla/url_parse.cc
index c143ed0073ff4b8125dc5b9bc2456d93bf1e432f..01d9d21fda2fe78718c09fdf5c2170f7f21aa76d 100644
--- a/url/third_party/mozilla/url_parse.cc
+++ b/url/third_party/mozilla/url_parse.cc
@@ -455,7 +455,8 @@ void DoParseFileSystemURL(const CHAR* spec, int spec_len, Parsed* parsed) {
 // Initializes a path URL which is merely a scheme followed by a path. Examples
 // include "about:foo" and "javascript:alert('bar');"
 template<typename CHAR>
-void DoParsePathURL(const CHAR* spec, int spec_len, Parsed* parsed) {
+void DoParsePathURL(const CHAR* spec, int spec_len, Parsed* parsed,
+                    bool trim_tail) {
   // Get the non-path and non-scheme parts of the URL out of the way, we never
   // use them.
   parsed->username.reset();
@@ -468,7 +469,8 @@ void DoParsePathURL(const CHAR* spec, int spec_len, Parsed* parsed) {
 
   // Strip leading & trailing spaces and control characters.
   int begin = 0;
-  TrimURL(spec, &begin, &spec_len);
+  int dummy_spec_len = spec_len;
+  TrimURL(spec, &begin, trim_tail ? &spec_len : &dummy_spec_len);
 
   // Handle empty specs or ones that contain only whitespace or control chars.
   if (begin == spec_len) {
@@ -877,12 +879,14 @@ void ParseStandardURL(const base::char16* url, int url_len, Parsed* parsed) {
   DoParseStandardURL(url, url_len, parsed);
 }
 
-void ParsePathURL(const char* url, int url_len, Parsed* parsed) {
-  DoParsePathURL(url, url_len, parsed);
+void ParsePathURL(const char* url, int url_len, Parsed* parsed,
+                  bool trim_tail) {
+  DoParsePathURL(url, url_len, parsed, trim_tail);
 }
 
-void ParsePathURL(const base::char16* url, int url_len, Parsed* parsed) {
-  DoParsePathURL(url, url_len, parsed);
+void ParsePathURL(const base::char16* url, int url_len, Parsed* parsed,
+                  bool trim_tail) {
+  DoParsePathURL(url, url_len, parsed, trim_tail);
 }
 
 void ParseFileSystemURL(const char* url, int url_len, Parsed* parsed) {