Consolidate all TDI SiteInstances into one render process.

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 156 matching lines @@
   size_t GetWorkerRefCount() const override;
   void IncrementServiceWorkerRefCount() override;
   void DecrementServiceWorkerRefCount() override;
   void IncrementSharedWorkerRefCount() override;
   void DecrementSharedWorkerRefCount() override;
   void ForceReleaseWorkerRefCounts() override;
   bool IsWorkerRefCountDisabled() override;
   void PurgeAndSuspend() override;
   void Resume() override;
   mojom::Renderer* GetRendererInterface() override;
+  void SetIsNeverSuitableForReuse() override;
+  bool MayReuseHost() override;
 
   mojom::RouteProvider* GetRemoteRouteProvider();
 
   // IPC::Sender via RenderProcessHost.
   bool Send(IPC::Message* msg) override;
 
   // IPC::Listener via RenderProcessHost.
   bool OnMessageReceived(const IPC::Message& msg) override;
   void OnChannelConnected(int32_t peer_pid) override;
   void OnChannelError() override;
@@ skipping 243 matching lines @@
   size_t service_worker_ref_count_;
   // See comments for IncrementSharedWorkerRefCount() and
   // DecrementSharedWorkerRefCount(). This is more like a boolean flag and not
   // actually the number of shared workers running in this process.
   size_t shared_worker_ref_count_;
 
   // Set in ForceReleaseWorkerRefCounts. When true, worker ref counts must no
   // longer be modified.
   bool is_worker_ref_count_disabled_;
 
+  // Whether this host is never suitable for reuse as determined in the
+  // MayReuseHost() function.
+  bool is_never_suitable_for_reuse_ = false;
+
   // The registered IPC listener objects. When this list is empty, we should
   // delete ourselves.
   IDMap<IPC::Listener*> listeners_;
 
   mojo::AssociatedBinding<mojom::RouteProvider> route_provider_binding_;
   mojo::AssociatedBindingSet<mojom::AssociatedInterfaceProvider>
       associated_interface_provider_bindings_;
 
   // The count of currently visible widgets.  Since the host can be a container
   // for multiple widgets, it uses this count to determine when it should be
@@ skipping 144 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_