ShapeDetectionImpl: Android implementation of detectFace()

content/browser/frame_host/render_frame_host_impl.cc

 // Copyright 2013 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 "content/browser/frame_host/render_frame_host_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 78 matching lines @@
 #include "content/public/common/service_manager_connection.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/common/url_utils.h"
 #include "device/generic_sensor/sensor_provider_impl.h"
 #include "device/geolocation/geolocation_service_context.h"
 #include "device/vibration/vibration_manager_impl.h"
 #include "device/wake_lock/wake_lock_service_context.h"
 #include "media/mojo/interfaces/media_service.mojom.h"
 #include "media/mojo/interfaces/service_factory.mojom.h"
 #include "mojo/public/cpp/bindings/associated_interface_ptr.h"
+#include "public/platform/modules/shapedetection/shapedetection.mojom.h"
 #include "services/shell/public/cpp/connector.h"
 #include "services/shell/public/cpp/interface_provider.h"
 #include "ui/accessibility/ax_tree.h"
 #include "ui/accessibility/ax_tree_update.h"
 #include "ui/gfx/geometry/quad_f.h"
 #include "url/gurl.h"
 
 #if defined(OS_ANDROID)
 #include "content/browser/android/app_web_message_port_message_filter.h"
 #include "content/public/browser/android/java_interfaces.h"
@@ skipping 2070 matching lines @@
 
   GetInterfaceRegistry()->AddInterface(base::Bind(
       &PresentationServiceImpl::CreateMojoService, base::Unretained(this)));
 
   GetInterfaceRegistry()->AddInterface(
       base::Bind(&MediaSessionServiceImpl::Create, base::Unretained(this)));
 
 #if defined(OS_ANDROID)
   GetInterfaceRegistry()->AddInterface(
       GetGlobalJavaInterfaces()
+          ->CreateInterfaceFactory<blink::mojom::ShapeDetection>());

[ncarter (slow), 2016/10/12 20:08:35]

Is it possible to only do AddInterface if the flag to enable the feature is set?

[xianglu, 2016/10/13 00:02:32]

There is a flag in Blink
https://cs.chromium.org/chromium/src/third_party/WebKit/Source/platform/Runti...

The flag is not visible here. But the shapedetection service won't be created
until the client connects to it.

+
+  GetInterfaceRegistry()->AddInterface(
+      GetGlobalJavaInterfaces()
           ->CreateInterfaceFactory<device::VibrationManager>());
 #else
   GetInterfaceRegistry()->AddInterface(
       base::Bind(&device::VibrationManagerImpl::Create));
 #endif
 
   bool enable_web_bluetooth = base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableWebBluetooth);
 #if defined(OS_CHROMEOS) || defined(OS_ANDROID) || defined(OS_MACOSX)
   enable_web_bluetooth = true;
@@ skipping 954 matching lines @@
   web_bluetooth_service_->SetClientConnectionErrorHandler(base::Bind(
       &RenderFrameHostImpl::DeleteWebBluetoothService, base::Unretained(this)));
   return web_bluetooth_service_.get();
 }
 
 void RenderFrameHostImpl::DeleteWebBluetoothService() {
   web_bluetooth_service_.reset();
 }
 
 }  // namespace content