[TTS] Decode Now on Tap results for v1 integration.

chrome/browser/android/contextualsearch/contextual_search_delegate.h

Index: chrome/browser/android/contextualsearch/contextual_search_delegate.h
diff --git a/chrome/browser/android/contextualsearch/contextual_search_delegate.h b/chrome/browser/android/contextualsearch/contextual_search_delegate.h
index ae5946d4bdd1034fe5593ccc6d0ac8c1e0e2203b..3c34a83433811ec6afa520d1780a722496f51c2e 100644
--- a/chrome/browser/android/contextualsearch/contextual_search_delegate.h
+++ b/chrome/browser/android/contextualsearch/contextual_search_delegate.h
@@ -62,7 +62,8 @@ class ContextualSearchDelegate
       TemplateURLService* template_url_service,
       const SearchTermResolutionCallback& search_term_callback,
       const SurroundingTextCallback& surrounding_callback,
-      const IcingCallback& icing_callback);
+      const IcingCallback& icing_callback,
+      std::unique_ptr<ContextualSearchFieldTrial> field_trial);
   ~ContextualSearchDelegate() override;
 
   // Gathers surrounding text and starts an asynchronous search term resolution
@@ -114,6 +115,8 @@ class ContextualSearchDelegate
   FRIEND_TEST_ALL_PREFIXES(ContextualSearchDelegateTest,
                            DecodeSearchTermFromJsonResponse);
   FRIEND_TEST_ALL_PREFIXES(ContextualSearchDelegateTest, DecodeStringMentions);
+  FRIEND_TEST_ALL_PREFIXES(ContextualSearchDelegateTest,
+                           ResponseWithNowOnTapData);
 
   // net::URLFetcherDelegate:
   void OnURLFetchComplete(const net::URLFetcher* source) override;
@@ -202,6 +205,12 @@ class ContextualSearchDelegate
                                int* startResult,
                                int* endResult);
 
+  // Decodes the Now on Tap response from the given dictionary, and returns
+  // whether both the subtitle and thumbnail were present.
+  void DecodeNowOnTapResponse(const base::DictionaryValue& dict,
+                              std::string* subtitle,
+                              std::string* thumbnail);
+
   // Generates a subset of the given surrounding_text string, for Icing
   // integration.
   // |surrounding_text| the entire text context that contains the selection.
@@ -228,9 +237,6 @@ class ContextualSearchDelegate
   // Holds the TemplateURLService. Not owned.
   TemplateURLService* template_url_service_;
 
-  // The field trial helper instance, always set up by the constructor.
-  std::unique_ptr<ContextualSearchFieldTrial> field_trial_;
-
   // The callback for notifications of completed URL fetches.
   SearchTermResolutionCallback search_term_callback_;
 
@@ -240,6 +246,9 @@ class ContextualSearchDelegate
   // The callback for notifications of Icing selection being available.
   IcingCallback icing_callback_;
 
+  // The field trial helper instance, always set up by the constructor.
+  std::unique_ptr<ContextualSearchFieldTrial> field_trial_;
+
   // Used to hold the context until an upcoming search term request is started.
   std::unique_ptr<ContextualSearchContext> context_;