Fix RPHI message queueing during process death

content/browser/renderer_host/render_process_host_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 98 matching lines @@
       public NON_EXPORTED_BASE(mojom::RouteProvider),
       public NON_EXPORTED_BASE(mojom::AssociatedInterfaceProvider) {
  public:
   RenderProcessHostImpl(BrowserContext* browser_context,
                         StoragePartitionImpl* storage_partition_impl,
                         bool is_for_guests_only);
   ~RenderProcessHostImpl() override;
 
   // RenderProcessHost implementation (public portion).
   bool Init() override;
+  void EnableSendQueue() override;
   int GetNextRoutingID() override;
   void AddRoute(int32_t routing_id, IPC::Listener* listener) override;
   void RemoveRoute(int32_t routing_id) override;
   void AddObserver(RenderProcessHostObserver* observer) override;
   void RemoveObserver(RenderProcessHostObserver* observer) override;
   void ShutdownForBadMessage(CrashReportMode crash_report_mode) override;
   void WidgetRestored() override;
   void WidgetHidden() override;
   int VisibleWidgetCount() const override;
   void AudioStateChanged() override;
@@ skipping 174 matching lines @@
   class ConnectionFilterImpl;
 
   size_t worker_ref_count() {
     return service_worker_ref_count_ + shared_worker_ref_count_;
   }
 
   // Initializes a new IPC::ChannelProxy in |channel_|, which will be connected
   // to the next child process launched for this host, if any.
   void InitializeChannelProxy();
 
+  // Resets |channel_|, removing it from the attachment broker if necessary.
+  // Always call this in lieu of directly resetting |channel_|.
+  void ResetChannelProxy();
+
   // Creates and adds the IO thread message filters.
   void CreateMessageFilters();
 
   // Registers Mojo interfaces to be exposed to the renderer.
   void RegisterMojoInterfaces();
 
   // mojom::RouteProvider:
   void GetRoute(
       int32_t routing_id,
       mojom::AssociatedInterfaceProviderAssociatedRequest request) override;
@@ skipping 269 matching lines @@
       instance_weak_factory_;
 
   base::WeakPtrFactory<RenderProcessHostImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_