Oilpan: Disable lazy seeping for ImageLoaders

Source/core/loader/ImageLoader.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 88 matching lines @@
         else
             m_scriptState = ScriptState::from(context);
     }
 
     ~Task() override
     {
     }
 
     void run() override
     {
-        if (m_loader) {
-#if ENABLE(OILPAN)
-            // Oilpan: this WebThread::Task microtask may run after the
-            // loader has been GCed, but not yet lazily swept & finalized
-            // (when this task's loader reference will be cleared.)
-            //
-            // Handle this transient condition by explicitly checking here
-            // before going ahead with the update operation. Unsafe to do it
-            // if so, as the objects that the loader refers to may have been
-            // finalized by this time.
-            if (Heap::willObjectBeLazilySwept(m_loader))
-                return;
-#endif
-            if (m_scriptState->contextIsValid()) {
-                ScriptState::Scope scope(m_scriptState.get());
-                m_loader->doUpdateFromElement(m_shouldBypassMainWorldCSP, m_updateBehavior);
-            } else {
-                m_loader->doUpdateFromElement(m_shouldBypassMainWorldCSP, m_updateBehavior);
-            }
+        if (!m_loader)
+            return;
+        if (m_scriptState->contextIsValid()) {
+            ScriptState::Scope scope(m_scriptState.get());
+            m_loader->doUpdateFromElement(m_shouldBypassMainWorldCSP, m_updateBehavior);
+        } else {
+            m_loader->doUpdateFromElement(m_shouldBypassMainWorldCSP, m_updateBehavior);
         }
     }
 
     void clearLoader()
     {
         m_loader = 0;
         m_scriptState.clear();
     }
 
     WeakPtr<Task> createWeakPtr()
@@ skipping 525 matching lines @@
 #endif
 }
 
 #if ENABLE(OILPAN)
 ImageLoader::ImageLoaderClientRemover::~ImageLoaderClientRemover()
 {
     m_loader.willRemoveClient(m_client);
 }
 #endif
 }