Oilpan: Prepare moving AXObject to heap

Source/modules/accessibility/AXInlineTextBox.cpp

Index: Source/modules/accessibility/AXInlineTextBox.cpp
diff --git a/Source/modules/accessibility/AXInlineTextBox.cpp b/Source/modules/accessibility/AXInlineTextBox.cpp
index c943d5f89a6fd22d9fcfe45e02bbaaac6dcf68f5..a68cddb2fcc32c2bb1192fb50fd36e3f7b492b1a 100644
--- a/Source/modules/accessibility/AXInlineTextBox.cpp
+++ b/Source/modules/accessibility/AXInlineTextBox.cpp
@@ -52,9 +52,9 @@ AXInlineTextBox::~AXInlineTextBox()
         m_axObjectCache->remove(m_inlineTextBox.get());
 }
 
-PassRefPtr<AXInlineTextBox> AXInlineTextBox::create(PassRefPtr<AbstractInlineTextBox> inlineTextBox, AXObjectCacheImpl* axObjectCache)
+PassRefPtrWillBeRawPtr<AXInlineTextBox> AXInlineTextBox::create(PassRefPtr<AbstractInlineTextBox> inlineTextBox, AXObjectCacheImpl* axObjectCache)
 {
-    return adoptRef(new AXInlineTextBox(inlineTextBox, axObjectCache));
+    return adoptRefWillBeNoop(new AXInlineTextBox(inlineTextBox, axObjectCache));
 }
 
 void AXInlineTextBox::init()
@@ -64,7 +64,7 @@ void AXInlineTextBox::init()
 void AXInlineTextBox::detach()
 {
     m_inlineTextBox = nullptr;
-    m_axObjectCache = 0;
+    m_axObjectCache = nullptr;
     AXObject::detach();
 }