Unify IMEDriver and IMEServer.

services/ui/ime/ime_server_impl.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 "services/ui/ime/ime_server_impl.h"
-
-#include "base/memory/ptr_util.h"
-#include "services/service_manager/public/cpp/connector.h"
-#include "services/ui/ime/ime_registrar_impl.h"
-
-namespace ui {
-
-IMEServerImpl::IMEServerImpl() : current_id_(0) {}
-
-IMEServerImpl::~IMEServerImpl() {}
-
-void IMEServerImpl::Init(service_manager::Connector* connector,
-                         bool is_test_config) {
-  if (is_test_config)
-    connector->StartService("test_ime_driver");
-  // For non test configs we assume a client registers with us.
-}
-
-void IMEServerImpl::AddBinding(mojom::IMEServerRequest request) {
-  bindings_.AddBinding(this, std::move(request));
-}
-
-void IMEServerImpl::OnDriverChanged(mojom::IMEDriverPtr driver) {
-  // TODO(moshayedi): crbug.com/669681. Handle switching drivers properly. For
-  // now we only register the first driver to avoid clients of the previous
-  // driver from hanging.
-  if (driver_)
-    return;
-
-  driver_ = std::move(driver);
-
-  while (!pending_requests_.empty()) {
-    driver_->StartSession(current_id_++, std::move(pending_requests_.front()));
-    pending_requests_.pop();
-  }
-}
-
-void IMEServerImpl::StartSession(mojom::StartSessionDetailsPtr details) {
-  if (driver_.get()) {
-    // TODO(moshayedi): crbug.com/634431. This will forward all calls from
-    // clients to the driver as they are. We may need to check |caret_bounds|
-    // parameter of InputMethod::OnCaretBoundsChanged() here and limit them to
-    // client's focused window.
-    driver_->StartSession(current_id_++, std::move(details));
-  } else {
-    pending_requests_.push(std::move(details));
-  }
-}
-
-}  // namespace ui