Revert of Make RenderProcessHost/RenderThread use MojoChildConnection/MojoShellConnection

content/common/mojo/mojo_shell_connection_impl.h

Index: content/common/mojo/mojo_shell_connection_impl.h
diff --git a/content/common/mojo/mojo_shell_connection_impl.h b/content/common/mojo/mojo_shell_connection_impl.h
index b20cd0ad4cb67e410ac21fa20f9b93872646b7ec..c1adb5f3a1513f52c5eb6c84e577da75cb37751c 100644
--- a/content/common/mojo/mojo_shell_connection_impl.h
+++ b/content/common/mojo/mojo_shell_connection_impl.h
@@ -38,7 +38,6 @@
   void SetConnectionLostClosure(const base::Closure& closure) override;
   void AddEmbeddedShellClient(
       std::unique_ptr<shell::ShellClient> shell_client) override;
-  void AddEmbeddedShellClient(shell::ShellClient* shell_client) override;
   void AddEmbeddedService(const std::string& name,
                           const MojoApplicationInfo& info) override;
   void AddShellClientRequestHandler(
@@ -50,8 +49,6 @@
                   const shell::Identity& identity,
                   uint32_t id) override;
   bool AcceptConnection(shell::Connection* connection) override;
-  shell::InterfaceRegistry* GetInterfaceRegistryForConnection() override;
-  shell::InterfaceProvider* GetInterfaceProviderForConnection() override;
 
   // shell::InterfaceFactory<shell::mojom::ShellClientFactory>:
   void Create(shell::Connection* connection,
@@ -63,8 +60,7 @@
 
   std::unique_ptr<shell::ShellConnection> shell_connection_;
   mojo::BindingSet<shell::mojom::ShellClientFactory> factory_bindings_;
-  std::vector<shell::ShellClient*> embedded_shell_clients_;
-  std::vector<std::unique_ptr<shell::ShellClient>> owned_shell_clients_;
+  std::vector<std::unique_ptr<shell::ShellClient>> embedded_shell_clients_;
   std::unordered_map<std::string, std::unique_ptr<EmbeddedApplicationRunner>>
       embedded_apps_;
   std::unordered_map<std::string, ShellClientRequestHandler> request_handlers_;