Add a class to parse answer json.

chrome/browser/autocomplete/search_provider_unittest.cc

Index: chrome/browser/autocomplete/search_provider_unittest.cc
diff --git a/chrome/browser/autocomplete/search_provider_unittest.cc b/chrome/browser/autocomplete/search_provider_unittest.cc
index b77a6de014d66d446573e3b419318d1a993d6bde..ed5abc857c4f61bd075c9cfd3e641cc379eb21e8 100644
--- a/chrome/browser/autocomplete/search_provider_unittest.cc
+++ b/chrome/browser/autocomplete/search_provider_unittest.cc
@@ -39,6 +39,7 @@
 #include "components/omnibox/autocomplete_provider_listener.h"
 #include "components/omnibox/omnibox_field_trial.h"
 #include "components/omnibox/omnibox_switches.h"
+#include "components/omnibox/suggestion_answer.h"
 #include "components/search_engines/search_engine_type.h"
 #include "components/search_engines/search_engines_switches.h"
 #include "components/search_engines/search_terms_data.h"
@@ -3418,8 +3419,8 @@ TEST_F(SearchProviderTest, AnswersCache) {
   base::string16 query = base::ASCIIToUTF16("weather los angeles");
   SearchSuggestionParser::SuggestResult suggest_result(
       query, AutocompleteMatchType::SEARCH_HISTORY, query, base::string16(),
-      base::string16(), base::string16(), base::string16(), std::string(),
-      std::string(), false, 1200, false, false, query);
+      base::string16(), base::string16(), base::string16(), SuggestionAnswer(),
+      std::string(), std::string(), false, 1200, false, false, query);
   QueryForInput(ASCIIToUTF16("weather l"), false, false);
   provider_->transformed_default_history_results_.push_back(suggest_result);
   answer = provider_->FindAnswersPrefetchData();