Fix process reuse for dedicated processes when over process limit.

content/public/test/mock_render_process_host.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_PUBLIC_TEST_MOCK_RENDER_PROCESS_HOST_H_
 #define CONTENT_PUBLIC_TEST_MOCK_RENDER_PROCESS_HOST_H_
 
 #include <stddef.h>
 #include <stdint.h>
 #include <memory>
@@ skipping 110 matching lines @@
   void ForceReleaseWorkerRefCounts() override;
   bool IsWorkerRefCountDisabled() override;
   void PurgeAndSuspend() override;
   void Resume() override;
   mojom::Renderer* GetRendererInterface() override;
   resource_coordinator::ResourceCoordinatorInterface*
   GetProcessResourceCoordinator() override;
 
   void SetIsNeverSuitableForReuse() override;
   bool MayReuseHost() override;
+  bool IsUnused() override;
+  void SetIsUsed() override;
 
   // 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;
 
   // Attaches the factory object so we can remove this object in its destructor
   // and prevent MockRenderProcessHostFacotry from deleting it.
@@ skipping 25 matching lines @@
   bool has_connection_;
   BrowserContext* browser_context_;
   base::ObserverList<RenderProcessHostObserver> observers_;
 
   int prev_routing_id_;
   IDMap<IPC::Listener*> listeners_;
   bool fast_shutdown_started_;
   bool deletion_callback_called_;
   bool is_for_guests_only_;
   bool is_process_backgrounded_;
+  bool is_unused_;
   std::unique_ptr<base::ProcessHandle> process_handle;
   int worker_ref_count_;
   std::unique_ptr<mojo::AssociatedInterfacePtr<mojom::Renderer>>
       renderer_interface_;
   std::map<std::string, InterfaceBinder> binder_overrides_;
   service_manager::Identity child_identity_;
   base::WeakPtrFactory<MockRenderProcessHost> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MockRenderProcessHost);
 };
@@ skipping 17 matching lines @@
   // for deleting all MockRenderProcessHosts that have not deleted by a test in
   // the destructor and prevent them from being leaked.
   mutable std::vector<std::unique_ptr<MockRenderProcessHost>> processes_;
 
   DISALLOW_COPY_AND_ASSIGN(MockRenderProcessHostFactory);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_MOCK_RENDER_PROCESS_HOST_H_