Oilpan: dispose ServiceWorker (and registration) objects earlier.

Source/modules/serviceworkers/ServiceWorkerRegistration.cpp

Index: Source/modules/serviceworkers/ServiceWorkerRegistration.cpp
diff --git a/Source/modules/serviceworkers/ServiceWorkerRegistration.cpp b/Source/modules/serviceworkers/ServiceWorkerRegistration.cpp
index ba7061c3247cf0dc2dfcb425fca63af985c43a52..11d5494a8cd3739e88b8da2a0846b964db8a952d 100644
--- a/Source/modules/serviceworkers/ServiceWorkerRegistration.cpp
+++ b/Source/modules/serviceworkers/ServiceWorkerRegistration.cpp
@@ -144,6 +144,7 @@ ServiceWorkerRegistration::ServiceWorkerRegistration(ExecutionContext* execution
     , m_provider(0)
     , m_stopped(false)
 {
+    WILL_REGISTER_PREFINALIZER(this);
     ASSERT(m_outerRegistration);
 
     if (!executionContext)
@@ -176,4 +177,11 @@ void ServiceWorkerRegistration::stop()
     m_outerRegistration->proxyStopped();
 }
 
+void ServiceWorkerRegistration::dispose()
+{
+    // See ServiceWorker::dispose() comment why this explicit dispose() action is needed.
+    m_outerRegistration.clear();

[haraken, 2015/01/26 01:39:42]

Can we add ASSERT(!m_outerRegistration) to ~ServiceWorkerRegistration()?

[sof, 2015/01/26 10:06:57]

Done.

+}
+
+
 } // namespace blink