Oilpan: prefinalize StyleFetchedImage* image resource clients.

third_party/WebKit/Source/core/style/StyleFetchedImageSet.cpp

Index: third_party/WebKit/Source/core/style/StyleFetchedImageSet.cpp
diff --git a/third_party/WebKit/Source/core/style/StyleFetchedImageSet.cpp b/third_party/WebKit/Source/core/style/StyleFetchedImageSet.cpp
index d34c7c165871b02e167d6992f285dc09303beedd..08971341c336635d36e9a4419ceb15666f0b245e 100644
--- a/third_party/WebKit/Source/core/style/StyleFetchedImageSet.cpp
+++ b/third_party/WebKit/Source/core/style/StyleFetchedImageSet.cpp
@@ -41,11 +41,20 @@ StyleFetchedImageSet::StyleFetchedImageSet(ImageResource* image, float imageScal
 {
     m_isImageResourceSet = true;
     m_bestFitImage->addClient(this);
+#if ENABLE(OILPAN)
+    ThreadState::current()->registerPreFinalizer(this);
+#endif
 }
 
-
 StyleFetchedImageSet::~StyleFetchedImageSet()
 {
+#if !ENABLE(OILPAN)
+    dispose();
+#endif
+}
+
+void StyleFetchedImageSet::dispose()
+{
     m_bestFitImage->removeClient(this);
 }