Video Capture Mojo (1.4a.a): Add service configurator interface

services/video_capture/video_capture_service.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/video_capture/video_capture_service.h"
 
+#include "services/video_capture/video_capture_device_factory_impl.h"
+
+namespace {
+static const char kFakeDeviceDisplayName[] = "Fake Video Capture Device";
+static const char kFakeDeviceId[] = "FakeDeviceId";
+static const char kFakeModelId[] = "FakeModelId";
+}
+
 namespace video_capture {
 
-VideoCaptureService::VideoCaptureService() = default;
+VideoCaptureService::VideoCaptureService()
+    : device_factory_(base::MakeUnique<VideoCaptureDeviceFactoryImpl>()),
+      fake_device_factory_(base::MakeUnique<VideoCaptureDeviceFactoryImpl>()) {
+  auto fake_device_descriptor = mojom::VideoCaptureDeviceDescriptor::New();
+  fake_device_descriptor->display_name = kFakeDeviceDisplayName;
+  fake_device_descriptor->device_id = kFakeDeviceId;
+  fake_device_descriptor->model_id = kFakeModelId;
+  fake_device_descriptor->capture_api = mojom::VideoCaptureApi::UNKNOWN;
+  fake_device_descriptor->transport_type =
+      mojom::VideoCaptureTransportType::OTHER_TRANSPORT;
+  fake_device_factory_->AddDevice(std::move(fake_device_descriptor),
+                                  base::MakeUnique<VideoCaptureDeviceImpl>());

[mcasas, 2016/08/18 21:11:22]

Consider moving l.20-28 to ConnectToFakeDeviceFactory(),
so this instantiation only happens if needed.

Also, shouldn't the construction of |device_factory_| and 
|fake_device_factory_| be done lazily in, resp., 
ConnectToDeviceFactory() and ConnectToFakeDeviceFactory() ?

[chfremer, 2016/08/19 16:10:19]

Excellent point.
Done.

+}
 
 VideoCaptureService::~VideoCaptureService() = default;
 
 bool VideoCaptureService::OnConnect(const shell::Identity& remote_identity,
                                     shell::InterfaceRegistry* registry) {
-  registry->AddInterface<mojom::VideoCaptureDeviceFactory>(this);
+  registry->AddInterface<mojom::VideoCaptureService>(this);
   return true;
 }
 
-void VideoCaptureService::Create(
-    const shell::Identity& remote_identity,
+void VideoCaptureService::Create(const shell::Identity& remote_identity,
+                                 mojom::VideoCaptureServiceRequest request) {
+  bindings_.AddBinding(this, std::move(request));
+}
+
+void VideoCaptureService::ConnectToDeviceFactory(
     mojom::VideoCaptureDeviceFactoryRequest request) {
-  bindings_.AddBinding(&device_factory_, std::move(request));
+  factory_bindings_.AddBinding(device_factory_.get(), std::move(request));
+}
+
+void VideoCaptureService::ConnectToFakeDeviceFactory(
+    mojom::VideoCaptureDeviceFactoryRequest request) {
+  fake_factory_bindings_.AddBinding(fake_device_factory_.get(),
+                                    std::move(request));
 }
 
 }  // namespace video_capture