Notify VRDeviceProviders when there are pages listening for vrdisplayactivate

chrome/browser/android/vr_shell/vr_shell_delegate.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_delegate.h"
 
 #include "base/android/jni_android.h"
 #include "chrome/browser/android/vr_shell/vr_shell.h"
 #include "device/vr/android/gvr/gvr_device_provider.h"
 #include "jni/VrShellDelegate_jni.h"
@@ skipping 90 matching lines @@
 
 void VrShellDelegate::DestroyNonPresentingDelegate() {
   if (non_presenting_delegate_) {
     non_presenting_delegate_.reset(nullptr);
     JNIEnv* env = AttachCurrentThread();
     Java_VrShellDelegate_shutdownNonPresentingNativeContext(
         env, j_vr_shell_delegate_.obj());
   }
 }
 
+void VrShellDelegate::SetListeningForActivate(bool listening) {
+  JNIEnv* env = AttachCurrentThread();
+  Java_VrShellDelegate_setListeningForWebVrActivate(
+      env, j_vr_shell_delegate_.obj(), listening);
+}
+
 // ----------------------------------------------------------------------------
 // Native JNI methods
 // ----------------------------------------------------------------------------
 
 bool RegisterVrShellDelegate(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 jlong Init(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   return reinterpret_cast<intptr_t>(new VrShellDelegate(env, obj));
 }
 
 }  // namespace vr_shell