Move ScriptState::GetExecutionContext (Part 6)

third_party/WebKit/Source/modules/mediastream/MediaDevicesRequest.cpp

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 23 matching lines @@
 namespace blink {
 
 MediaDevicesRequest* MediaDevicesRequest::Create(
     ScriptState* state,
     UserMediaController* controller) {
   return new MediaDevicesRequest(state, controller);
 }
 
 MediaDevicesRequest::MediaDevicesRequest(ScriptState* state,
                                          UserMediaController* controller)
-    : ContextLifecycleObserver(state->GetExecutionContext()),
+    : ContextLifecycleObserver(ExecutionContext::From(state)),
       controller_(controller),
       resolver_(ScriptPromiseResolver::Create(state)) {}
 
 MediaDevicesRequest::~MediaDevicesRequest() {}
 
 Document* MediaDevicesRequest::OwnerDocument() {
   if (ExecutionContext* context = GetExecutionContext()) {
     return ToDocument(context);
   }
 
@@ skipping 19 matching lines @@
   resolver_.Clear();
 }
 
 DEFINE_TRACE(MediaDevicesRequest) {
   visitor->Trace(controller_);
   visitor->Trace(resolver_);
   ContextLifecycleObserver::Trace(visitor);
 }
 
 }  // namespace blink