Audio notification plumbed from guest WebContents up to embedder.

content/browser/web_contents/web_contents_impl.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 "content/browser/web_contents/web_contents_impl.h"
 
 #include <stddef.h>
 
 #include <cmath>
 #include <utility>
@@ skipping 1272 matching lines @@
   tracked_objects::ScopedTracker tracking_profile(
       FROM_HERE_WITH_EXPLICIT_FUNCTION(
           "466285 WebContentsImpl::NotifyNavigationStateChanged"));
   // Notify the media observer of potential audibility changes.
   if (changed_flags & INVALIDATE_TYPE_TAB) {
     media_web_contents_observer_->MaybeUpdateAudibleState();
   }
 
   if (delegate_)
     delegate_->NavigationStateChanged(this, changed_flags);
+
+  if (GetOuterWebContents())
+    GetOuterWebContents()->NotifyNavigationStateChanged(changed_flags);
 }
 
 base::TimeTicks WebContentsImpl::GetLastActiveTime() const {
   return last_active_time_;
 }
 
 void WebContentsImpl::SetLastActiveTime(base::TimeTicks last_active_time) {
   last_active_time_ = last_active_time;
 }
 
@@ skipping 1734 matching lines @@
 
   GetOrCreateFindRequestManager()->StopFinding(action);
 }
 
 void WebContentsImpl::InsertCSS(const std::string& css) {
   GetMainFrame()->Send(new FrameMsg_CSSInsertRequest(
       GetMainFrame()->GetRoutingID(), css));
 }
 
 bool WebContentsImpl::WasRecentlyAudible() {
-  return audio_stream_monitor_.WasRecentlyAudible();
+  return audio_stream_monitor_.WasRecentlyAudible() ||
+         (browser_plugin_embedder_ &&
+          browser_plugin_embedder_->WereAnyGuestsRecentlyAudible());
 }
 
 void WebContentsImpl::GetManifest(const GetManifestCallback& callback) {
   manifest_manager_host_->GetManifest(GetMainFrame(), callback);
 }
 
 void WebContentsImpl::HasManifest(const HasManifestCallback& callback) {
   manifest_manager_host_->HasManifest(GetMainFrame(), callback);
 }
 
@@ skipping 1974 matching lines @@
   for (RenderViewHost* render_view_host : render_view_host_set)
     render_view_host->OnWebkitPreferencesChanged();
 }
 
 void WebContentsImpl::SetJavaScriptDialogManagerForTesting(
     JavaScriptDialogManager* dialog_manager) {
   dialog_manager_ = dialog_manager;
 }
 
 }  // namespace content