Implementation of elbow model for the controller position and rotation.

chrome/browser/android/vr_shell/BUILD.gn

 # 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.
 
 import("//build/config/android/rules.gni")
 import("//chrome/common/features.gni")
 import("//device/vr/features.gni")
 import("//testing/test.gni")
 
 assert(enable_vr)
 
 if (current_cpu == "arm" || current_cpu == "arm64") {
   static_library("vr_common") {
     defines = []
 
     sources = [
       "android_ui_gesture_target.cc",
       "android_ui_gesture_target.h",
       "animation.cc",
       "animation.h",
       "easing.cc",
       "easing.h",
+      "elbow_model.cc",
+      "elbow_model.h",
       "fps_meter.cc",
       "fps_meter.h",
       "gltf_asset.cc",
       "gltf_asset.h",
       "gltf_parser.cc",
       "gltf_parser.h",
       "mailbox_to_surface_bridge.cc",
       "mailbox_to_surface_bridge.h",
       "non_presenting_gvr_delegate.cc",
       "non_presenting_gvr_delegate.h",
@@ skipping 102 matching lines @@
     libs =
         [ "//third_party/gvr-android-sdk/libgvr_shim_static_${current_cpu}.a" ]
 
     data = [
       "test/data/sample_inline.gltf",
       "test/data/sample_external.gltf",
       "test/data/sample.bin",
     ]
   }
 }