Switch stream creation and closing in Chrome audio rendering from IPC to Mojo

content/browser/frame_host/render_frame_host_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/bad_message.h"
 #include "content/browser/loader/global_routing_id.h"
+#include "content/browser/media/audio_output_impl.h"
 #include "content/browser/site_instance_impl.h"
 #include "content/browser/webui/web_ui_impl.h"
 #include "content/common/accessibility_mode_enums.h"
 #include "content/common/ax_content_node_data.h"
 #include "content/common/content_export.h"
 #include "content/common/frame_message_enums.h"
 #include "content/common/frame_replication_state.h"
 #include "content/common/image_downloader/image_downloader.mojom.h"
 #include "content/common/mojo/service_registry_impl.h"
 #include "content/common/navigation_params.h"
@@ skipping 160 matching lines @@
 
   // Tracks whether the RenderFrame for this RenderFrameHost has been created in
   // the renderer process.  This is currently only used for subframes.
   // TODO(creis): Use this for main frames as well when RVH goes away.
   void SetRenderFrameCreated(bool created);
 
   // Called for renderer-created windows to resume requests from this frame,
   // after they are blocked in RenderWidgetHelper::CreateNewWindow.
   void Init();
 
+  void set_audio_output_impl(AudioOutputImpl* audio_output_impl) {
+    audio_output_impl_ = audio_output_impl;
+  }
+
   int routing_id() const { return routing_id_; }
   void OnCreateChildFrame(
       int new_routing_id,
       blink::WebTreeScopeType scope,
       const std::string& frame_name,
       const std::string& frame_unique_name,
       blink::WebSandboxFlags sandbox_flags,
       const blink::WebFrameOwnerProperties& frame_owner_properties);
 
   RenderViewHostImpl* render_view_host() { return render_view_host_; }
@@ skipping 623 matching lines @@
   // the renderer process.  Currently only used for subframes.
   // TODO(creis): Use this for main frames as well when RVH goes away.
   bool render_frame_created_;
 
   // Whether we should buffer outgoing Navigate messages rather than sending
   // them. This will be true when a RenderFrameHost is created for a cross-site
   // request, until we hear back from the onbeforeunload handler of the old
   // RenderFrameHost.
   bool navigations_suspended_;
 
+  AudioOutputImpl* audio_output_impl_;
+
   // Holds the parameters for a suspended navigation. This can only happen while
   // this RFH is the pending RenderFrameHost of a RenderFrameHostManager. There
   // will only ever be one suspended navigation, because RenderFrameHostManager
   // will destroy the pending RenderFrameHost and create a new one if a second
   // navigation occurs.
   // PlzNavigate: unused as navigations are never suspended.
   std::unique_ptr<NavigationParams> suspended_nav_params_;
 
   // When the last BeforeUnload message was sent.
   base::TimeTicks send_before_unload_start_time_;
@@ skipping 119 matching lines @@
 
   // NOTE: This must be the last member.
   base::WeakPtrFactory<RenderFrameHostImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_