Support URL fragment resolution againt non-hierarchical schemes

url/gurl.h

Index: url/gurl.h
diff --git a/url/gurl.h b/url/gurl.h
index d4ea10fbcf09ccf43461c9b801393092d79e0b30..5deb38790fc14f5b96184519f470d9d2b576a9e5 100644
--- a/url/gurl.h
+++ b/url/gurl.h
@@ -355,6 +355,17 @@ class URL_EXPORT GURL {
   }
 
  private:
+  // Variant of the string parsing constructor that allows the caller to elect
+  // retain trailing whitespace, if any, on the passed URL spec but only  if the
+  // scheme is one that allows trailing whitespace. The primary use-case is
+  // for data: URLs. In most cases, you want to use the single parameter
+  // constructor above.
+  enum RetainWhiteSpaceSelector { RETAIN_TRAILING_PATH_WHITEPACE };
+  GURL(const std::string& url_string, RetainWhiteSpaceSelector);
+
+  template<typename STR>
+  void InitCanonical(const STR& input_spec, bool trim_path_end);
+
   void InitializeFromCanonicalSpec();
 
   // Returns the substring of the input identified by the given component.