Remove ActiveDOMCallback::isScriptControllerTerminating

third_party/WebKit/Source/bindings/core/v8/V8IntersectionObserverCallback.cpp

 // 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 "bindings/core/v8/V8IntersectionObserverCallback.h"
 
 #include "bindings/core/v8/ScriptController.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8IntersectionObserver.h"
 #include "bindings/core/v8/V8PrivateProperty.h"
@@ skipping 20 matching lines @@
     if (!canInvokeCallback())
         return;
 
     if (!m_scriptState->contextIsValid())
         return;
     ScriptState::Scope scope(m_scriptState.get());
 
     if (m_callback.isEmpty())
         return;
     v8::Local<v8::Value> observerHandle = toV8(&observer, m_scriptState->context()->Global(), m_scriptState->isolate());
-    if (observerHandle.IsEmpty()) {
-        if (!isScriptControllerTerminating())
-            CRASH();
-        return;
-    }
-
     if (!observerHandle->IsObject())
         return;
 
     v8::Local<v8::Object> thisObject = v8::Local<v8::Object>::Cast(observerHandle);
     v8::Local<v8::Value> entriesHandle = toV8(entries, m_scriptState->context()->Global(), m_scriptState->isolate());
     if (entriesHandle.IsEmpty()) {
         return;
     }
     v8::Local<v8::Value> argv[] = { entriesHandle, observerHandle };
 
     v8::TryCatch exceptionCatcher(m_scriptState->isolate());
     exceptionCatcher.SetVerbose(true);
     V8ScriptRunner::callFunction(m_callback.newLocal(m_scriptState->isolate()), m_scriptState->getExecutionContext(), thisObject, 2, argv, m_scriptState->isolate());
 }
 
 DEFINE_TRACE(V8IntersectionObserverCallback)
 {
     IntersectionObserverCallback::trace(visitor);
     ActiveDOMCallback::trace(visitor);
 }
 
 } // namespace blink