Attempt to fix the crash in blink Scroll Animator.

third_party/WebKit/Source/platform/scroll/ScrollAnimatorCompositorCoordinator.cpp

Index: third_party/WebKit/Source/platform/scroll/ScrollAnimatorCompositorCoordinator.cpp
diff --git a/third_party/WebKit/Source/platform/scroll/ScrollAnimatorCompositorCoordinator.cpp b/third_party/WebKit/Source/platform/scroll/ScrollAnimatorCompositorCoordinator.cpp
index 917fc2331f551d63f6eac2bc3ba58367dee97d21..3a90c1ec967b68053b78334e54f73bb9d9a61b1b 100644
--- a/third_party/WebKit/Source/platform/scroll/ScrollAnimatorCompositorCoordinator.cpp
+++ b/third_party/WebKit/Source/platform/scroll/ScrollAnimatorCompositorCoordinator.cpp
@@ -21,6 +21,9 @@ ScrollAnimatorCompositorCoordinator::ScrollAnimatorCompositorCoordinator()
     , m_compositorAnimationId(0)
     , m_compositorAnimationGroupId(0)
 {
+#if ENABLE(OILPAN)
+    ThreadState::current()->registerPreFinalizer(this);
+#endif
     if (RuntimeEnabledFeatures::compositorAnimationTimelinesEnabled()) {
         ASSERT(Platform::current()->compositorSupport());
         m_compositorPlayer = adoptPtr(CompositorFactory::current().createAnimationPlayer());
@@ -31,6 +34,13 @@ ScrollAnimatorCompositorCoordinator::ScrollAnimatorCompositorCoordinator()
 
 ScrollAnimatorCompositorCoordinator::~ScrollAnimatorCompositorCoordinator()
 {
+#if !ENABLE(OILPAN)
+    ScrollAnimatorCompositorCoordinator::dispose();
+#endif
+}
+
+void ScrollAnimatorCompositorCoordinator::dispose()
+{
     if (m_compositorPlayer) {
         m_compositorPlayer->setAnimationDelegate(nullptr);
         m_compositorPlayer.clear();