VR: Refresh controller handedness when resuming the controller.

chrome/browser/android/vr_shell/elbow_model.h

 // 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.
 
 // Adapted from:
 // https://github.com/googlevr/gvr-unity-sdk/blob/master/Samples/DaydreamLabsControllerPlayground/Assets/GoogleVR/Scripts/Controller/GvrArmModel.cs
 
 #ifndef CHROME_BROWSER_ANDROID_VR_SHELL_ELBOW_MODEL_H_
 #define CHROME_BROWSER_ANDROID_VR_SHELL_ELBOW_MODEL_H_
 
@@ skipping 13 matching lines @@
   };
 
   explicit ElbowModel(gvr::ControllerHandedness handedness);
   ~ElbowModel();
 
   const gfx::Point3F& GetControllerPosition() const { return wrist_position_; }
   const vr::Quatf& GetControllerRotation() const { return wrist_rotation_; }
   float GetAlphaValue() const { return alpha_value_; }
 
   void Update(const UpdateData& update);
+  void SetHandedness(gvr::ControllerHandedness handedness);
 
  private:
   void UpdateHandedness();
   void UpdateTorsoDirection(const UpdateData& update);
   void ApplyArmModel(const UpdateData& update);
   void UpdateTransparency(const UpdateData& update);
 
   gvr::ControllerHandedness handedness_;
 
   gfx::Point3F wrist_position_;
   vr::Quatf wrist_rotation_;
   float alpha_value_;
 
   gfx::Point3F elbow_position_;
   vr::Quatf elbow_rotation_;
   gfx::Point3F shoulder_position_;
   vr::Quatf shoulder_rotation_;
   gfx::Vector3dF torso_direction_;
   gfx::Vector3dF handed_multiplier_;
 };
 
 }  // namespace vr_shell
 
 #endif  // CHROME_BROWSER_ANDROID_VR_SHELL_ELBOW_MODEL_H_