Fix use-after-scope bug in IntrusiveHeapTest.HeapIndex.

third_party/WebKit/Source/platform/scheduler/base/intrusive_heap_unittest.cc

Index: third_party/WebKit/Source/platform/scheduler/base/intrusive_heap_unittest.cc
diff --git a/third_party/WebKit/Source/platform/scheduler/base/intrusive_heap_unittest.cc b/third_party/WebKit/Source/platform/scheduler/base/intrusive_heap_unittest.cc
index 1f7bb6f6a716dcbd59954c45b354a14268d2b36c..e28d2ed4897327d4d4574ee509424fe7e1951d92 100644
--- a/third_party/WebKit/Source/platform/scheduler/base/intrusive_heap_unittest.cc
+++ b/third_party/WebKit/Source/platform/scheduler/base/intrusive_heap_unittest.cc
@@ -104,12 +104,12 @@ TEST(IntrusiveHeapTest, InsertDescending) {
 }
 
 TEST(IntrusiveHeapTest, HeapIndex) {
-  IntrusiveHeap<TestElement> heap;
   HeapHandle index5;
   HeapHandle index4;
   HeapHandle index3;
   HeapHandle index2;
   HeapHandle index1;
+  IntrusiveHeap<TestElement> heap;
 
   EXPECT_FALSE(index1.IsValid());
   EXPECT_FALSE(index2.IsValid());