Hide methods inherited from GURL::Replacement's base class.

These methods are generally a bit more awkward to use than the helpers
exposed by GURL::Replacement itself. Hide them to encourage callers to
use the easier-to-use versions instead.

Bug: 1271865
Change-Id: I592743c067edef3b90707c075ae20662099d0f8b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3292948
Commit-Queue: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Mike West <mkwst@chromium.org>
Cr-Commit-Position: refs/heads/main@{#944379}

url/url_canon_stdstring.h

@@ -81,30 +81,47 @@ class StringPieceReplacements : public Replacements<CharT> {
   void SetUsernameStr(const CharT* str) { SetImpl(&ParentT::SetUsername, str); }
   void SetUsernameStr(StringPieceT str) { SetImpl(&ParentT::SetUsername, str); }
   void SetUsernameStr(const StringT&&) = delete;
+  using ParentT::ClearUsername;
 
   void SetPasswordStr(const CharT* str) { SetImpl(&ParentT::SetPassword, str); }
   void SetPasswordStr(StringPieceT str) { SetImpl(&ParentT::SetPassword, str); }
   void SetPasswordStr(const StringT&&) = delete;
+  using ParentT::ClearPassword;
 
   void SetHostStr(const CharT* str) { SetImpl(&ParentT::SetHost, str); }
   void SetHostStr(StringPieceT str) { SetImpl(&ParentT::SetHost, str); }
   void SetHostStr(const StringT&&) = delete;
+  using ParentT::ClearHost;
 
   void SetPortStr(const CharT* str) { SetImpl(&ParentT::SetPort, str); }
   void SetPortStr(StringPieceT str) { SetImpl(&ParentT::SetPort, str); }
   void SetPortStr(const StringT&&) = delete;
+  using ParentT::ClearPort;
 
   void SetPathStr(const CharT* str) { SetImpl(&ParentT::SetPath, str); }
   void SetPathStr(StringPieceT str) { SetImpl(&ParentT::SetPath, str); }
   void SetPathStr(const StringT&&) = delete;
+  using ParentT::ClearPath;
 
   void SetQueryStr(const CharT* str) { SetImpl(&ParentT::SetQuery, str); }
   void SetQueryStr(StringPieceT str) { SetImpl(&ParentT::SetQuery, str); }
   void SetQueryStr(const StringT&&) = delete;
+  using ParentT::ClearQuery;
 
   void SetRefStr(const CharT* str) { SetImpl(&ParentT::SetRef, str); }
   void SetRefStr(StringPieceT str) { SetImpl(&ParentT::SetRef, str); }
   void SetRefStr(const StringT&&) = delete;
+  using ParentT::ClearRef;
+
+ private:
+  using ParentT::SetHost;
+  using ParentT::SetPassword;
+  using ParentT::SetPath;
+  using ParentT::SetPort;
+  using ParentT::SetQuery;
+  using ParentT::SetRef;
+  using ParentT::SetScheme;
+  using ParentT::SetUsername;
 };
 
 }  // namespace url