Reduce code size of BindingState

mojo/public/cpp/bindings/lib/binding_state.cc

+// Copyright 2016 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.
+
+#include "mojo/public/cpp/bindings/lib/binding_state.h"
+
+namespace mojo {
+namespace internal {
+
+SimpleBindingStateBase::SimpleBindingStateBase() = default;
+
+SimpleBindingStateBase::~SimpleBindingStateBase() = default;
+
+void SimpleBindingStateBase::Bind(
+    ScopedMessagePipeHandle handle,
+    scoped_refptr<base::SingleThreadTaskRunner> runner,
+    const char* interface_name,
+    MessageFilter* request_validator,
+    bool has_sync_methods,
+    MessageReceiverWithResponderStatus* stub) {
+  internal::FilterChain filters;
+  filters.Append<MessageHeaderValidator>(interface_name);
+  filters.Append(request_validator);
+
+  router_ = new internal::Router(std::move(handle), std::move(filters),
+                                 has_sync_methods, std::move(runner));
+  router_->set_incoming_receiver(stub);
+  router_->set_connection_error_handler(
+      base::Bind(&SimpleBindingStateBase::RunConnectionErrorHandler,
+                 base::Unretained(this)));
+}
+
+void SimpleBindingStateBase::PauseIncomingMethodCallProcessing() {
+  DCHECK(router_);
+  router_->PauseIncomingMethodCallProcessing();
+}
+void SimpleBindingStateBase::ResumeIncomingMethodCallProcessing() {
+  DCHECK(router_);
+  router_->ResumeIncomingMethodCallProcessing();
+}
+
+bool SimpleBindingStateBase::WaitForIncomingMethodCall(MojoDeadline deadline) {
+  DCHECK(router_);
+  return router_->WaitForIncomingMessage(deadline);
+}
+
+void SimpleBindingStateBase::Close() {
+  if (!router_)
+    return;
+
+  router_->CloseMessagePipe();
+  DestroyRouter();
+}
+
+void SimpleBindingStateBase::EnableTestingMode() {
+  DCHECK(is_bound());
+  router_->EnableTestingMode();
+}
+
+void SimpleBindingStateBase::DestroyRouter() {
+  router_->set_connection_error_handler(base::Closure());
+  delete router_;
+  router_ = nullptr;
+  connection_error_handler_.Reset();
+}
+
+void SimpleBindingStateBase::RunConnectionErrorHandler() {
+  if (!connection_error_handler_.is_null())
+    connection_error_handler_.Run();
+}
+
+// -----------------------------------------------------------------------------
+
+MultiplexedBindingStateBase::MultiplexedBindingStateBase() = default;
+
+MultiplexedBindingStateBase::~MultiplexedBindingStateBase() = default;
+
+void MultiplexedBindingStateBase::Bind(
+    ScopedMessagePipeHandle handle,
+    scoped_refptr<base::SingleThreadTaskRunner> runner,
+    const char* interface_name,
+    std::unique_ptr<MessageFilter> request_validator,
+    bool has_sync_methods,
+    MessageReceiverWithResponderStatus* stub) {
+  DCHECK(!router_);
+
+  router_ = new internal::MultiplexRouter(false, std::move(handle), runner);
+  router_->SetMasterInterfaceName(interface_name);
+

[tibell, 2016/08/03 01:02:15]

I moved the line

    stub_.serialization_context()->group_controller = router_;

from here into the caller (i.e. it will happen after the below lines after this
refactoring). From what I can tell that is safe, but please verify.

+  endpoint_client_.reset(new InterfaceEndpointClient(
+      router_->CreateLocalEndpointHandle(kMasterInterfaceId), stub,
+      std::move(request_validator), has_sync_methods, std::move(runner)));
+
+  endpoint_client_->set_connection_error_handler(
+      base::Bind(&MultiplexedBindingStateBase::RunConnectionErrorHandler,
+                 base::Unretained(this)));
+}
+
+bool MultiplexedBindingStateBase::HasAssociatedInterfaces() const {
+  return router_ ? router_->HasAssociatedEndpoints() : false;
+}
+
+void MultiplexedBindingStateBase::PauseIncomingMethodCallProcessing() {
+  DCHECK(router_);
+  router_->PauseIncomingMethodCallProcessing();
+}
+void MultiplexedBindingStateBase::ResumeIncomingMethodCallProcessing() {
+  DCHECK(router_);
+  router_->ResumeIncomingMethodCallProcessing();
+}
+
+bool MultiplexedBindingStateBase::WaitForIncomingMethodCall(
+    MojoDeadline deadline) {
+  DCHECK(router_);
+  return router_->WaitForIncomingMessage(deadline);
+}
+
+void MultiplexedBindingStateBase::Close() {
+  if (!router_)
+    return;
+
+  endpoint_client_.reset();
+  router_->CloseMessagePipe();
+  router_ = nullptr;
+  connection_error_handler_.Reset();
+}
+
+void MultiplexedBindingStateBase::EnableTestingMode() {
+  DCHECK(is_bound());
+  router_->EnableTestingMode();
+}
+
+void MultiplexedBindingStateBase::RunConnectionErrorHandler() {
+  if (!connection_error_handler_.is_null())
+    connection_error_handler_.Run();
+}
+
+}  // namesapce internal
+}  // namespace mojo