[TTS] Log diagnostic output log for Contextual Cards.

chrome/browser/android/contextualsearch/contextual_search_delegate.cc

 // Copyright 2015 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 "chrome/browser/android/contextualsearch/contextual_search_delegate.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/base64.h"
@@ skipping 540 matching lines @@
       } else if (quick_action_category_string == kActionCategoryPhone) {
         *quick_action_category = QUICK_ACTION_CATEGORY_PHONE;
       }
     }
   }
 
   if (field_trial_->IsContextualCardsBarIntegrationEnabled() ||
       base::FeatureList::IsEnabled(
           chrome::android::kContextualSearchSingleActions)) {
     // Any Contextual Cards integration.
-    // For testing purposes check if there was a Contextual Cards backend
-    // failure and flag that in the log.
+    // For testing purposes check if there was a diagnostic from Contextual
+    // Cards and output that into the log.
     // TODO(donnd): remove after full Contextual Cards integration.
-    bool contextual_cards_backend_responded = true;
-    dict->GetBoolean("coca_responded", &contextual_cards_backend_responded);
-    if (!contextual_cards_backend_responded) {
-      DVLOG(0) << "";
-      DVLOG(0) << "!!! CONTEXTUAL SEARCH WARNING !!!";
-      DVLOG(0)
-          << "The Contextual Cards backend did not respond to this "
-             "request!!! The backend server may not be configured or is down.";
-      DVLOG(0) << "";
+    std::string contextual_cards_diagnostic;
+    dict->GetString("diagnostic", &contextual_cards_diagnostic);
+    if (contextual_cards_diagnostic.empty()) {
+      DVLOG(0) << "No diagnostic data in the response.";
+    } else {
+      DVLOG(0) << "The Contextual Cards backend response: ";
+      DVLOG(0) << contextual_cards_diagnostic;
     }
   }
 }
 
 // Extract the Start/End of the mentions in the surrounding text
 // for selection-expansion.
 void ContextualSearchDelegate::ExtractMentionsStartEnd(
     const base::ListValue& mentions_list,
     int* startResult,
     int* endResult) {
@@ skipping 24 matching lines @@
     end_offset -= trim;
   }
   if (result_text.length() > end_offset + padding_each_side_pinned) {
     // Trim the end.
     result_text = result_text.substr(0, end_offset + padding_each_side_pinned);
   }
   *start = start_offset;
   *end = end_offset;
   return result_text;
 }