[Remote suggestions] Clean up variation params in the fetcher.

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 <utility>
 #include <vector>
@@ skipping 296 matching lines @@
 
   SendBoolean("flag-physical-web", base::FeatureList::IsEnabled(
                                        chrome::android::kPhysicalWebFeature));
 
   SendClassification();
   SendLastRemoteSuggestionsBackgroundFetchTime();
 
   if (remote_suggestions_provider_) {
     const ntp_snippets::RemoteSuggestionsFetcher* fetcher =
         remote_suggestions_provider_->suggestions_fetcher_for_debugging();
-    // TODO(fhorschig): Read this string from variations directly.
-    SendString("switch-personalized", fetcher->PersonalizationModeString());
-
     SendString("switch-fetch-url", fetcher->fetch_url().spec());
     web_ui()->CallJavascriptFunctionUnsafe(
         "chrome.SnippetsInternals.receiveJson",
         base::StringValue(fetcher->last_json()));
   }
 
   SendContentSuggestions();
 }
 
 void SnippetsInternalsMessageHandler::SendClassification() {
@@ skipping 91 matching lines @@
 void SnippetsInternalsMessageHandler::OnDismissedSuggestionsLoaded(
     Category category,
     std::vector<ContentSuggestion> dismissed_suggestions) {
   if (dismissed_state_[category] == DismissedState::HIDDEN) {
     return;
   }
   dismissed_suggestions_[category] = std::move(dismissed_suggestions);
   dismissed_state_[category] = DismissedState::VISIBLE;
   SendContentSuggestions();
 }