Update dangling markup mitigations.

url/url_util.cc

Index: url/url_util.cc
diff --git a/url/url_util.cc b/url/url_util.cc
index a17ec4d86d4c1269af1858fe695bfc064310a4b4..c026453b40981a9229fccd912264c155fe033b4c 100644
--- a/url/url_util.cc
+++ b/url/url_util.cc
@@ -185,8 +185,8 @@ bool DoFindAndCompareScheme(const CHAR* str,
   // This matches the canonicalization done in DoCanonicalize function.
   RawCanonOutputT<CHAR> whitespace_buffer;
   int spec_len;
-  const CHAR* spec = RemoveURLWhitespace(str, str_len,
-                                         &whitespace_buffer, &spec_len);
+  const CHAR* spec =
+      RemoveURLWhitespace(str, str_len, &whitespace_buffer, &spec_len, nullptr);
 
   Component our_scheme;
   if (!ExtractScheme(spec, spec_len, &our_scheme)) {
@@ -214,11 +214,8 @@ bool DoCanonicalize(const CHAR* spec,
   // Possibly this will result in copying to the new buffer.
   RawCanonOutputT<CHAR> whitespace_buffer;
   if (whitespace_policy == REMOVE_WHITESPACE) {
-    int original_len = spec_len;
-    spec =
-        RemoveURLWhitespace(spec, original_len, &whitespace_buffer, &spec_len);
-    if (spec_len != original_len)
-      output_parsed->whitespace_removed = true;
+    spec = RemoveURLWhitespace(spec, spec_len, &whitespace_buffer, &spec_len,
+                               &output_parsed->potentially_dangling_markup);
   }
 
   Parsed parsed_input;
@@ -296,11 +293,9 @@ bool DoResolveRelative(const char* base_spec,
   // copying to the new buffer.
   RawCanonOutputT<CHAR> whitespace_buffer;
   int relative_length;
-  const CHAR* relative = RemoveURLWhitespace(in_relative, in_relative_length,
-                                             &whitespace_buffer,
-                                             &relative_length);
-  if (in_relative_length != relative_length)
-    output_parsed->whitespace_removed = true;
+  const CHAR* relative = RemoveURLWhitespace(
+      in_relative, in_relative_length, &whitespace_buffer, &relative_length,
+      &output_parsed->potentially_dangling_markup);
 
   bool base_is_authority_based = false;
   bool base_is_hierarchical = false;