Removed deprecated WebVR functionality

chrome/browser/android/vr_shell/vr_shell_gl.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 "chrome/browser/android/vr_shell/vr_shell_gl.h"
 
 #include <chrono>
 #include <limits>
 #include <utility>
 
@@ skipping 1259 matching lines @@
   gvr::Mat4f head_mat =
       gvr_api_->GetHeadSpaceFromStartSpaceRotation(target_time);
   head_mat = gvr_api_->ApplyNeckModel(head_mat, 1.0f);
 
   webvr_head_pose_[frame_index % kPoseRingBufferSize] = head_mat;
 
   callback.Run(VrShell::VRPosePtrFromGvrPose(head_mat), time, frame_index,
                device::mojom::VRVSyncProvider::Status::SUCCESS);
 }
 
-void VrShellGl::ResetPose() {
-  // Should never call RecenterTracking when using with Daydream viewers. On
-  // those devices recentering should only be done via the controller.
-  if (gvr_api_ && gvr_api_->GetViewerType() == GVR_VIEWER_TYPE_CARDBOARD)
-    gvr_api_->RecenterTracking();
-}
-
 void VrShellGl::CreateVRDisplayInfo(
     const base::Callback<void(device::mojom::VRDisplayInfoPtr)>& callback,
     uint32_t device_id) {
   // This assumes that the initial webvr_surface_size_ was set to the
   // appropriate recommended render resolution as the default size during
   // InitializeGl. Revisit if the initialization order changes.
   device::mojom::VRDisplayInfoPtr info = VrShell::CreateVRDisplayInfo(
       gvr_api_.get(), webvr_surface_size_, device_id);
   main_thread_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&RunVRDisplayInfoCallback, callback, base::Passed(&info)));
 }
 
 }  // namespace vr_shell