Android Tango depth camera capture support.

media/capture/video/android/video_capture_device_factory_android.cc

Index: media/capture/video/android/video_capture_device_factory_android.cc
diff --git a/media/capture/video/android/video_capture_device_factory_android.cc b/media/capture/video/android/video_capture_device_factory_android.cc
index 5275a478a70234b11d9687f0d59c84c850e05bb4..293ab17c3ab08e08b35ceacadaa61a109a6de205 100644
--- a/media/capture/video/android/video_capture_device_factory_android.cc
+++ b/media/capture/video/android/video_capture_device_factory_android.cc
@@ -13,6 +13,7 @@
 #include "base/strings/stringprintf.h"
 #include "jni/VideoCaptureFactory_jni.h"
 #include "media/capture/video/android/video_capture_device_android.h"
+#include "media/capture/video/android/video_capture_device_tango_android.h"
 
 using base::android::AttachCurrentThread;
 using base::android::JavaRef;
@@ -37,6 +38,9 @@ VideoCaptureDeviceFactoryAndroid::CreateDevice(
   if (!base::StringToInt(device_descriptor.device_id, &id))
     return std::unique_ptr<VideoCaptureDevice>();
 
+  if (device_descriptor.capture_api == VideoCaptureApi::ANDROID_TANGO)
+    return std::unique_ptr<VideoCaptureDeviceTangoAndroid>(
+        new VideoCaptureDeviceTangoAndroid(device_descriptor));
   std::unique_ptr<VideoCaptureDeviceAndroid> video_capture_device(
       new VideoCaptureDeviceAndroid(device_descriptor));
 
@@ -84,6 +88,8 @@ void VideoCaptureDeviceFactoryAndroid::GetDeviceDescriptors(
     DVLOG(1) << __func__ << ": camera "
              << "device_name=" << display_name << ", unique_id=" << device_id;
   }
+  // Also retrieve Tango device cameras, if present, via Tango API.
+  VideoCaptureDeviceTangoAndroid::EnumerateDevices(device_descriptors);
 }
 
 void VideoCaptureDeviceFactoryAndroid::GetSupportedFormats(
@@ -93,6 +99,9 @@ void VideoCaptureDeviceFactoryAndroid::GetSupportedFormats(
   int id;
   if (!base::StringToInt(device.device_id, &id))
     return;
+  if (device.capture_api == VideoCaptureApi::ANDROID_TANGO)
+    return VideoCaptureDeviceTangoAndroid::EnumerateDeviceCapabilities(
+        device, capture_formats);
   JNIEnv* env = AttachCurrentThread();
   base::android::ScopedJavaLocalRef<jobjectArray> collected_formats =
       Java_VideoCaptureFactory_getDeviceSupportedFormats(env, id);