Continue to clean c_str() calls.

components/omnibox/browser/builtin_provider.cc

Index: components/omnibox/browser/builtin_provider.cc
diff --git a/components/omnibox/browser/builtin_provider.cc b/components/omnibox/browser/builtin_provider.cc
index 35fb3a8225156557c15796640f358dd59afb8b6a..d272e19556ad9436006d43572ad83aff2f5ac219 100644
--- a/components/omnibox/browser/builtin_provider.cc
+++ b/components/omnibox/browser/builtin_provider.cc
@@ -68,8 +68,7 @@ void BuiltinProvider::Start(const AutocompleteInput& input,
                        base::CompareCase::SENSITIVE);
     // BuiltinProvider doesn't know how to suggest valid ?query or #fragment
     // extensions to builtin URLs.
-    if (url.SchemeIs(
-            client_->GetEmbedderRepresentationOfAboutScheme().c_str()) &&
+    if (url.SchemeIs(client_->GetEmbedderRepresentationOfAboutScheme()) &&
         url.has_host() && !url.has_query() && !url.has_ref()) {
       // Suggest about:blank for substrings, taking URL fixup into account.
       // Chrome does not support trailing slashes or paths for about:blank.