[subresource_filter] Replace KMP by std::search.

components/subresource_filter/core/common/test_ruleset_creator.h

Index: components/subresource_filter/core/common/test_ruleset_creator.h
diff --git a/components/subresource_filter/core/common/test_ruleset_creator.h b/components/subresource_filter/core/common/test_ruleset_creator.h
index 9ff0b53e2eeb6fada4f806afede6584c68d0d694..afc7a6e4671f9c22a3cba03a79186e44a64dd1d9 100644
--- a/components/subresource_filter/core/common/test_ruleset_creator.h
+++ b/components/subresource_filter/core/common/test_ruleset_creator.h
@@ -85,6 +85,8 @@ class TestRulesetCreator {
 
   void CreateRulesetWithRules(const std::vector<proto::UrlRule>& rules,
                               TestRulesetPair* test_ruleset_pair);
+  void CreateRulesetWithRules(const std::vector<proto::UrlRule>& rules,
+                              TestRuleset* test_unindexed_ruleset);
 
   // Returns a unique |path| that is valid for the lifetime of this instance.
   // No file at |path| will be automatically created.