Allow content embedders to create AudioManager.

content/public/browser/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 "content/public/browser/content_browser_client.h"
 
 #include "base/files/file_path.h"
 #include "build/build_config.h"
 #include "content/public/browser/client_certificate_delegate.h"
 #include "content/public/common/sandbox_type.h"
@@ skipping 84 matching lines @@
   return false;
 }
 
 bool ContentBrowserClient::ShouldSwapBrowsingInstancesForNavigation(
     SiteInstance* site_instance,
     const GURL& current_url,
     const GURL& new_url) {
   return false;
 }
 
+media::AudioManager* ContentBrowserClient::CreateAudioManager(
+    media::AudioLogFactory* audio_log_factory) {
+  return nullptr;
+}
+
 std::unique_ptr<media::CdmFactory> ContentBrowserClient::CreateCdmFactory() {
   return nullptr;
 }
 
 bool ContentBrowserClient::ShouldSwapProcessesForRedirect(
     ResourceContext* resource_context, const GURL& current_url,
     const GURL& new_url) {
   return false;
 }
 
@@ skipping 300 matching lines @@
 #if defined(VIDEO_HOLE)
 ExternalVideoSurfaceContainer*
 ContentBrowserClient::OverrideCreateExternalVideoSurfaceContainer(
     WebContents* web_contents) {
   NOTREACHED() << "Hole-punching is not supported. See crbug.com/469348.";
   return nullptr;
 }
 #endif
 
 }  // namespace content