Oilpan: move LiveNodeList collections to the heap.

Source/web/tests/TouchActionTest.cpp

Index: Source/web/tests/TouchActionTest.cpp
diff --git a/Source/web/tests/TouchActionTest.cpp b/Source/web/tests/TouchActionTest.cpp
index f5d1c4f26d8f82dd13076aaf73805219b925f6ac..9545d167c99bbeaddf9339f848dad43cf00d7ec6 100644
--- a/Source/web/tests/TouchActionTest.cpp
+++ b/Source/web/tests/TouchActionTest.cpp
@@ -147,7 +147,7 @@ void TouchActionTest::runShadowDOMTest(std::string file)
 
     WebCore::TrackExceptionState es;
     RefPtrWillBeRawPtr<WebCore::Document> document = static_cast<PassRefPtrWillBeRawPtr<WebCore::Document> >(webView->mainFrame()->document());
-    RefPtr<WebCore::NodeList> hostNodes = document->querySelectorAll("[shadow-host]", es);
+    RefPtrWillBeRawPtr<WebCore::NodeList> hostNodes = document->querySelectorAll("[shadow-host]", es);
     ASSERT_FALSE(es.hadException());
     ASSERT_GE(hostNodes->length(), 1u);
 
@@ -186,10 +186,16 @@ void TouchActionTest::runTestOnTree(WebCore::ContainerNode* root, WebView* webVi
 {
     // Find all elements to test the touch-action of in the document.
     WebCore::TrackExceptionState es;
-    RefPtr<WebCore::NodeList> nodes = root->querySelectorAll("[expected-action]", es);
+    RefPtrWillBeRawPtr<WebCore::NodeList> nodes = root->querySelectorAll("[expected-action]", es);
     ASSERT_FALSE(es.hadException());
 
     for (unsigned index = 0; index < nodes->length(); index++) {
+        // FIXME: Oilpan: this is a longer running test that allocates. If the
+        // PendingGCRunner task is run, it GCs assuming no pointers on the stack.
+        // But there are here; explicitly GCing each time around this loop isn't
+        // addressing that problem completely.
+        WebCore::Heap::collectGarbage(WebCore::ThreadState::HeapPointersOnStack);
+
         WebCore::Element* element = toElement(nodes->item(index));
         element->scrollIntoViewIfNeeded();
         ASSERT_TRUE(nodes->item(index)->isElementNode());