media: add video capture device for ARC++ camera HAL v3

media/capture/video/chromeos/mock_camera_module.cc

+// Copyright 2017 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 "media/capture/video/chromeos/mock_camera_module.h"
+
+#include <memory>
+#include <utility>
+
+namespace media {
+namespace unittest_internal {
+
+MockCameraModule::MockCameraModule()
+    : mock_module_thread_("MockModuleThread"), binding_(this) {
+  mock_module_thread_.Start();
+}
+
+MockCameraModule::~MockCameraModule() {
+  mock_module_thread_.task_runner()->PostTask(
+      FROM_HERE, base::Bind(&MockCameraModule::CloseBindingOnThread,
+                            base::Unretained(this)));
+  mock_module_thread_.Stop();
+}
+
+void MockCameraModule::OpenDevice(
+    int32_t camera_id,
+    arc::mojom::Camera3DeviceOpsRequest device_ops_request,
+    OpenDeviceCallback callback) {
+  DoOpenDevice(camera_id, device_ops_request, callback);
+}
+
+void MockCameraModule::GetNumberOfCameras(GetNumberOfCamerasCallback callback) {
+  DoGetNumberOfCameras(callback);
+}
+
+void MockCameraModule::GetCameraInfo(int32_t camera_id,
+                                     GetCameraInfoCallback callback) {
+  DoGetCameraInfo(camera_id, callback);
+}
+
+void MockCameraModule::SetCallbacks(
+    arc::mojom::CameraModuleCallbacksPtr callbacks,
+    SetCallbacksCallback callback) {
+  DoSetCallbacks(callbacks, callback);
+  callbacks_ = std::move(callbacks);
+  std::move(callback).Run(0);
+}
+
+arc::mojom::CameraModulePtrInfo MockCameraModule::GetInterfacePtrInfo() {
+  base::WaitableEvent done(base::WaitableEvent::ResetPolicy::MANUAL,
+                           base::WaitableEvent::InitialState::NOT_SIGNALED);
+  arc::mojom::CameraModulePtrInfo ptr_info;
+  mock_module_thread_.task_runner()->PostTask(
+      FROM_HERE,
+      base::Bind(&MockCameraModule::BindOnThread, base::Unretained(this),
+                 base::Unretained(&done), base::Unretained(&ptr_info)));
+  done.Wait();
+  return ptr_info;
+}
+
+void MockCameraModule::CloseBindingOnThread() {
+  if (binding_.is_bound()) {
+    binding_.Close();
+  }
+}
+
+void MockCameraModule::BindOnThread(base::WaitableEvent* done,
+                                    arc::mojom::CameraModulePtrInfo* ptr_info) {
+  arc::mojom::CameraModulePtr camera_module_ptr;
+  arc::mojom::CameraModuleRequest camera_module_request =
+      mojo::MakeRequest(&camera_module_ptr);
+  binding_.Bind(std::move(camera_module_request));
+  *ptr_info = camera_module_ptr.PassInterface();
+  done->Signal();
+}
+
+}  // namespace unittest_internal
+}  // namespace media