Change NTPSnippetsService to implement ContentSuggestionsProvider

chrome/browser/ui/webui/snippets_internals_message_handler.cc

 // Copyright 2016 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/ui/webui/snippets_internals_message_handler.h"
 
 #include <memory>
 #include <set>
 #include <vector>
 
@@ skipping 96 matching lines @@
   DCHECK_EQ(0u, args->GetSize());
 
   dom_loaded_ = true;
 
   SendInitialData();
 }
 
 void SnippetsInternalsMessageHandler::HandleClear(const base::ListValue* args) {
   DCHECK_EQ(0u, args->GetSize());
 
-  ntp_snippets_service_->ClearSnippets();
+  ntp_snippets_service_->ClearCachedSuggestionsForDebugging();
 }
 
 void SnippetsInternalsMessageHandler::HandleClearDiscarded(
     const base::ListValue* args) {
   DCHECK_EQ(0u, args->GetSize());
 
-  ntp_snippets_service_->ClearDiscardedSnippets();
+  ntp_snippets_service_->ClearDiscardedSuggestionsForDebugging();
   SendDiscardedSnippets();
 }
 
 void SnippetsInternalsMessageHandler::HandleDownload(
     const base::ListValue* args) {
   DCHECK_EQ(1u, args->GetSize());
 
   SendString("hosts-status", std::string());
 
   std::string hosts_string;
@@ skipping 93 matching lines @@
 }
 
 void SnippetsInternalsMessageHandler::SendString(const std::string& name,
                                                  const std::string& value) {
   base::StringValue string_name(name);
   base::StringValue string_value(value);
 
   web_ui()->CallJavascriptFunctionUnsafe(
       "chrome.SnippetsInternals.receiveProperty", string_name, string_value);
 }