bluetooth: Subscribe to notifications

third_party/WebKit/Source/modules/bluetooth/BluetoothSupplement.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 "config.h"
 #include "modules/bluetooth/BluetoothSupplement.h"
 
 #include "core/dom/Document.h"
 
 namespace blink {
@@ skipping 19 matching lines @@
     BluetoothSupplement* supplement = static_cast<BluetoothSupplement*>(WillBeHeapSupplement<LocalFrame>::from(frame, supplementName()));
 
     ASSERT(supplement);
     ASSERT(supplement->m_bluetooth);
 
     return supplement->m_bluetooth;
 }
 
 WebBluetooth* BluetoothSupplement::fromScriptState(ScriptState* scriptState)
 {
-    if (!scriptState->executionContext()->isDocument()) {
+    return fromExecutionContext(scriptState->executionContext());
+}
+
+WebBluetooth* BluetoothSupplement::fromExecutionContext(ExecutionContext* executionContext)
+{
+    if (!executionContext->isDocument()) {
         return nullptr;
     }
-    return BluetoothSupplement::from(static_cast<Document*>(scriptState->executionContext())->frame());
+    return BluetoothSupplement::from(static_cast<Document*>(executionContext)->frame());
 }
 
 DEFINE_TRACE(BluetoothSupplement)
 {
     WillBeHeapSupplement<LocalFrame>::trace(visitor);
 }
 
 }; // blink