chrome/blink: Add functionality for in-product help for media elements.

chrome/browser/chrome_content_browser_client.cc

 // Copyright (c) 2012 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/chrome_content_browser_client.h"
 
 #include <map>
 #include <set>
 #include <utility>
 #include <vector>
@@ skipping 124 matching lines @@
 #include "components/cloud_devices/common/cloud_devices_switches.h"
 #include "components/content_settings/core/browser/content_settings_utils.h"
 #include "components/content_settings/core/browser/cookie_settings.h"
 #include "components/content_settings/core/browser/host_content_settings_map.h"
 #include "components/content_settings/core/common/content_settings.h"
 #include "components/content_settings/core/common/content_settings_types.h"
 #include "components/content_settings/core/common/content_settings_utils.h"
 #include "components/dom_distiller/core/dom_distiller_switches.h"
 #include "components/dom_distiller/core/url_constants.h"
 #include "components/error_page/common/error_page_switches.h"
+#include "components/feature_engagement/public/feature_constants.h"
+#include "components/feature_engagement/public/feature_list.h"
 #include "components/google/core/browser/google_util.h"
 #include "components/metrics/call_stack_profile_collector.h"
 #include "components/metrics/client_info.h"
 #include "components/nacl/common/nacl_constants.h"
 #include "components/net_log/chrome_net_log.h"
 #include "components/password_manager/content/browser/content_password_manager_driver_factory.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/prefs/pref_service.h"
 #include "components/prefs/scoped_user_pref_update.h"
 #include "components/rappor/public/rappor_utils.h"
@@ skipping 2350 matching lines @@
       if (base::FeatureList::IsEnabled(
               features::kAllowAutoplayUnmutedInWebappManifestScope)) {
         web_prefs->media_playback_gesture_whitelist_scope =
             tab_android->GetWebappManifestScope();
       }
     }
   }
 
   web_prefs->video_fullscreen_detection_enabled =
       chrome::android::AppHooks::ShouldDetectVideoFullscreen();
+
+  web_prefs->enable_media_download_in_product_help =
+      base::FeatureList::IsEnabled(
+          feature_engagement::kIPHMediaDownloadFeature);
 #endif  // defined(OS_ANDROID)
 
   for (size_t i = 0; i < extra_parts_.size(); ++i)
     extra_parts_[i]->OverrideWebkitPrefs(rvh, web_prefs);
 }
 
 void ChromeContentBrowserClient::BrowserURLHandlerCreated(
     BrowserURLHandler* handler) {
   for (size_t i = 0; i < extra_parts_.size(); ++i)
     extra_parts_[i]->BrowserURLHandlerCreated(handler);
@@ skipping 946 matching lines @@
   // |safe_browsing_service_| may be unavailable in tests.
   if (safe_browsing_service_ && !safe_browsing_url_checker_delegate_) {
     safe_browsing_url_checker_delegate_ =
         new safe_browsing::UrlCheckerDelegateImpl(
             safe_browsing_service_->database_manager(),
             safe_browsing_service_->ui_manager());
   }
 
   return safe_browsing_url_checker_delegate_.get();
 }