Add a class to parse answer json.

components/omnibox/search_suggestion_parser_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/omnibox/search_suggestion_parser.h"
 
 #include "base/json/json_reader.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
+#include "components/omnibox/suggestion_answer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 namespace {
 
 scoped_ptr<base::DictionaryValue> AsDictionary(const std::string& json) {
   base::Value* value = base::JSONReader::Read(json);
   base::DictionaryValue* dict;
   if (value && value->GetAsDictionary(&dict))
     return scoped_ptr<base::DictionaryValue>(dict);
 
   delete value;
   return scoped_ptr<base::DictionaryValue>(new base::DictionaryValue);
 }
 
 }  // namespace
 
 TEST(SearchSuggestionParser, GetAnswersImageURLsWithoutImagelines) {
   std::vector<GURL> urls;
 
   // No "l" entry in the dictionary.
-  SearchSuggestionParser::GetAnswersImageURLs(AsDictionary("").get(), &urls);
+  SuggestionAnswer answer;
+  SuggestionAnswer::ParseAnswer(AsDictionary("").get(), &answer);
+  SearchSuggestionParser::GetAnswersImageURLs(answer, &urls);
   EXPECT_TRUE(urls.empty());
 
   // Empty "l" entry in the dictionary.
-  SearchSuggestionParser::GetAnswersImageURLs(
-      AsDictionary("{ \"l\" : {} } ").get(), &urls);
+  SuggestionAnswer::ParseAnswer(AsDictionary("{ \"l\" : {} } ").get(), &answer);
+  SearchSuggestionParser::GetAnswersImageURLs(answer, &urls);
   EXPECT_TRUE(urls.empty());
 }
 
 TEST(SearchSuggestionParser, GetAnswersImageURLsWithValidImage) {
   std::vector<GURL> urls;
 
   const char answer_json[] =
-      "{ \"l\" : [{\"il\": { \"i\": {\"d\": "
-      "\"//ssl.gstatic.com/foo.png\",\"t\": 3}}}]}";
-  SearchSuggestionParser::GetAnswersImageURLs(AsDictionary(answer_json).get(),
-                                              &urls);
+      "{ \"l\" : ["
+      "{\"il\": { \"t\": [{\"t\": \"some text\", \"tt\": 5}]}},"
+      "{\"il\": { \"t\": [{\"t\": \"other text\", \"tt\": 8}],"
+      "           \"i\": {\"d\": \"//ssl.gstatic.com/foo.png\",\"t\": 3}}}]}";
+  SuggestionAnswer answer;
+  SuggestionAnswer::ParseAnswer(AsDictionary(answer_json).get(), &answer);
+  SearchSuggestionParser::GetAnswersImageURLs(answer, &urls);
   ASSERT_EQ(1U, urls.size());
   EXPECT_EQ("https://ssl.gstatic.com/foo.png", urls[0].spec());
 }