Add deprecation messages to deprecated parts of the WebVR API.

third_party/WebKit/Source/modules/vr/NavigatorVR.cpp

 // Copyright 2015 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 "modules/vr/NavigatorVR.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
@@ skipping 39 matching lines @@
   Document* document = frame() ? frame()->document() : 0;
 
   if (!document || !controller()) {
     DOMException* exception = DOMException::create(
         InvalidStateError, "The object is no longer associated to a document.");
     resolver->reject(exception);
     return promise;
   }
 
   UseCounter::count(*document, UseCounter::VRGetDisplays);
+  ExecutionContext* executionContext = scriptState->getExecutionContext();
+  String errorMessage;
+  if (!executionContext->isSecureContext(errorMessage))
+    UseCounter::count(*document, UseCounter::VRGetDisplaysInsecureOrigin);
 
   controller()->getDisplays(resolver);
 
   return promise;
 }
 
 VRController* NavigatorVR::controller() {
   if (!frame())
     return 0;
 
@@ skipping 30 matching lines @@
   }
 }
 
 void NavigatorVR::fireVREvent(VRDisplayEvent* event) {
   if (frame() && frame()->localDOMWindow()) {
     frame()->localDOMWindow()->enqueueWindowEvent(event);
   }
 }
 
 }  // namespace blink