Add switches for language detection and translation logging.

chrome/browser/translate/chrome_translate_client.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 "chrome/browser/translate/chrome_translate_client.h"
 
 #include <memory>
 #include <vector>
 
+#include "base/feature_list.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/strings/string_split.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/user_event_service_factory.h"
 #include "chrome/browser/translate/language_model_factory.h"
 #include "chrome/browser/translate/translate_accept_languages_factory.h"
 #include "chrome/browser/translate/translate_ranker_factory.h"
 #include "chrome/browser/translate/translate_service.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/translate/translate_bubble_factory.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/grit/theme_resources.h"
 #include "components/metrics/proto/translate_event.pb.h"
 #include "components/prefs/pref_service.h"
+#include "components/sync/driver/sync_driver_switches.h"
 #include "components/sync/protocol/user_event_specifics.pb.h"
 #include "components/sync/user_events/user_event_service.h"
 #include "components/translate/core/browser/language_model.h"
 #include "components/translate/core/browser/language_state.h"
 #include "components/translate/core/browser/page_translated_details.h"
 #include "components/translate/core/browser/translate_accept_languages.h"
 #include "components/translate/core/browser/translate_download_manager.h"
 #include "components/translate/core/browser/translate_infobar_delegate.h"
 #include "components/translate/core/browser/translate_manager.h"
 #include "components/translate/core/browser/translate_prefs.h"
 #include "components/translate/core/common/language_detection_details.h"
 #include "components/translate/core/common/language_detection_logging_helper.h"
 #include "components/translate/core/common/translation_logging_helper.h"
 #include "components/variations/service/variations_service.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "url/gurl.h"
 
 namespace {
+using base::FeatureList;
 using metrics::TranslateEventProto;
 
 TranslateEventProto::EventType BubbleResultToTranslateEvent(
     ShowTranslateBubbleResult result) {
   switch (result) {
     case ShowTranslateBubbleResult::BROWSER_WINDOW_NOT_VALID:
       return TranslateEventProto::BROWSER_WINDOW_IS_INVALID;
     case ShowTranslateBubbleResult::BROWSER_WINDOW_MINIMIZED:
       return TranslateEventProto::BROWSER_WINDOW_IS_MINIMIZED;
     case ShowTranslateBubbleResult::BROWSER_WINDOW_NOT_ACTIVE:
       return TranslateEventProto::BROWSER_WINDOW_NOT_ACTIVE;
     case ShowTranslateBubbleResult::WEB_CONTENTS_NOT_ACTIVE:
       return TranslateEventProto::WEB_CONTENTS_NOT_ACTIVE;
     case ShowTranslateBubbleResult::EDITABLE_FIELD_IS_ACTIVE:
       return TranslateEventProto::EDITABLE_FIELD_IS_ACTIVE;
     default:
       NOTREACHED();
       return metrics::TranslateEventProto::UNKNOWN;
   }
 }
 
 // ========== LOG LANGUAGE DETECTION EVENT ==============
 
 void LogLanguageDetectionEvent(
     const content::WebContents* const web_contents,
     const translate::LanguageDetectionDetails& details) {
+  if (!FeatureList::IsEnabled(switches::kSyncUserLanguageDetectionEvents))
+    return;
   auto* const profile =
       Profile::FromBrowserContext(web_contents->GetBrowserContext());
 
   syncer::UserEventService* const user_event_service =
       browser_sync::UserEventServiceFactory::GetForProfile(profile);
 
   const auto* const entry =
       web_contents->GetController().GetLastCommittedEntry();
 
   // If entry is null, we don't record the page.
   // The navigation entry can be null in situations like download or initial
   // blank page.
   DCHECK(web_contents);
   if (entry != nullptr &&
       TranslateService::IsTranslatableURL(entry->GetVirtualURL())) {
     user_event_service->RecordUserEvent(
         translate::ConstructLanguageDetectionEvent(
             entry->GetTimestamp().ToInternalValue(), details));
   }
 }
 
 // ========== LOG TRANSLATE EVENT ==============
 
 void LogTranslateEvent(const content::WebContents* const web_contents,
                        const metrics::TranslateEventProto& translate_event) {
+  if (!FeatureList::IsEnabled(switches::kSyncUserTranslationEvents))
+    return;
   DCHECK(web_contents);
   auto* const profile =
       Profile::FromBrowserContext(web_contents->GetBrowserContext());
 
   syncer::UserEventService* const user_event_service =
       browser_sync::UserEventServiceFactory::GetForProfile(profile);
 
   const auto* const entry =
       web_contents->GetController().GetLastCommittedEntry();
 
@@ skipping 318 matching lines @@
       return ShowTranslateBubbleResult::SUCCESS;
   }
 
   return TranslateBubbleFactory::Show(browser->window(), web_contents(), step,
                                       error_type);
 #else
   NOTREACHED();
   return ShowTranslateBubbleResult::SUCCESS;
 #endif
 }