Send vrdisplayactivate to the most recently focused navigator listening for displayactivate.

device/vr/android/gvr/gvr_device_provider.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 "device/vr/android/gvr/gvr_device_provider.h"
 
 #include <jni.h>
 
 #include "base/android/context_utils.h"
 #include "base/android/jni_android.h"
@@ skipping 26 matching lines @@
 }
 
 device::GvrDelegateProvider* GvrDeviceProvider::GetDelegateProvider() {
   device::GvrDelegateProvider* provider =
       device::GvrDelegateProvider::GetInstance();
   Initialize(provider);
   return provider;
 }
 
 void GvrDeviceProvider::Initialize() {
-  // TODO(mthiesse): Clean up how we connect the GvrDelegateProvider to the
-  // GvrDeviceProvider so we don't have to call this function multiple times.
-  // Ideally the DelegateProvider would always be available, and GetInstance()
-  // would create it.
   Initialize(device::GvrDelegateProvider::GetInstance());
 }
 
 void GvrDeviceProvider::Initialize(device::GvrDelegateProvider* provider) {
   if (!provider)
     return;
   provider->SetDeviceProvider(this);
 }
 
 void GvrDeviceProvider::RequestPresent(
@@ skipping 17 matching lines @@
 
 void GvrDeviceProvider::SetListeningForActivate(bool listening) {
   device::GvrDelegateProvider* delegate_provider = GetDelegateProvider();
   if (!delegate_provider)
     return;
 
   delegate_provider->SetListeningForActivate(listening);
 }
 
 }  // namespace device