[Hotword] Sync Audio History pref every 24 hours, when opening chrome://settings and . . .

chrome/browser/search/hotword_service.cc

 // Copyright 2013 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/search/hotword_service.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/i18n/case_conversion.h"
@@ skipping 207 matching lines @@
 
   // Overridden from NotificationDelegate:
   void ButtonClick(int button_index) override {
     DCHECK_EQ(0, button_index);
 
     // Launch the hotword audio verification app in the right mode.
     HotwordService::LaunchMode launch_mode =
         HotwordService::HOTWORD_AND_AUDIO_HISTORY;
     if (profile_->GetPrefs()->GetBoolean(
             prefs::kHotwordAudioLoggingEnabled)) {
-      // TODO(rlp): Make sure the Chrome Audio History pref is synced
-      // to the account-level Audio History setting from footprints.
       launch_mode = HotwordService::HOTWORD_ONLY;
     }
 
     HotwordService* hotword_service =
         HotwordServiceFactory::GetForProfile(profile_);
 
     if (!hotword_service)
       return;
 
     hotword_service->LaunchHotwordAudioVerificationApp(launch_mode);
@@ skipping 101 matching lines @@
           &HotwordService::MaybeReinstallHotwordExtension),
                  weak_factory_.GetWeakPtr()));
 
   // Clear the old user pref because it became unusable.
   // TODO(rlp): Remove this code per crbug.com/358789.
   if (profile_->GetPrefs()->HasPrefPath(
           hotword_internal::kHotwordUnusablePrefName)) {
     profile_->GetPrefs()->ClearPref(hotword_internal::kHotwordUnusablePrefName);
   }
 
-  audio_history_handler_.reset(new HotwordAudioHistoryHandler(profile_));
+  SetAudioHistoryHandler(new HotwordAudioHistoryHandler(
+      profile_, base::MessageLoop::current()->task_runner()));
 
   if (HotwordServiceFactory::IsHotwordHardwareAvailable() &&
       IsHotwordAllowed() &&
       IsExperimentalHotwordingEnabled()) {
     // Show the hotword notification in 5 seconds if the experimental flag is
     // on, or in 30 minutes if not. We need to wait at least a few seconds
     // for the hotword extension to be installed.
     CommandLine* command_line = CommandLine::ForCurrentProcess();
     if (command_line->HasSwitch(switches::kEnableExperimentalHotwordHardware)) {
       base::MessageLoop::current()->PostDelayedTask(
@@ skipping 377 matching lines @@
   return training_;
 }
 
 HotwordAudioHistoryHandler* HotwordService::GetAudioHistoryHandler() {
   return audio_history_handler_.get();
 }
 
 void HotwordService::SetAudioHistoryHandler(
     HotwordAudioHistoryHandler* handler) {
   audio_history_handler_.reset(handler);
+  audio_history_handler_->UpdateAudioHistoryState();
 }
 
 void HotwordService::DisableHotwordPreferences() {
   if (IsSometimesOnEnabled()) {
     if (profile_->GetPrefs()->HasPrefPath(prefs::kHotwordSearchEnabled))
       profile_->GetPrefs()->SetBoolean(prefs::kHotwordSearchEnabled, false);
   } else if (IsAlwaysOnEnabled()) {
     if (profile_->GetPrefs()->HasPrefPath(
             prefs::kHotwordAlwaysOnSearchEnabled)) {
       profile_->GetPrefs()->SetBoolean(prefs::kHotwordAlwaysOnSearchEnabled,
@@ skipping 82 matching lines @@
   // Only support multiple profiles and profile switching in ChromeOS.
   if (user_manager::UserManager::IsInitialized()) {
     user_manager::User* user =
         user_manager::UserManager::Get()->GetActiveUser();
     if (user && user->is_profile_created())
       return profile_ == ProfileManager::GetActiveUserProfile();
   }
 #endif
   return true;
 }