Isolate tests by running AtExit callbacks between them.

base/lazy_instance_unittest.cc

Index: base/lazy_instance_unittest.cc
diff --git a/base/lazy_instance_unittest.cc b/base/lazy_instance_unittest.cc
index de5ea8795b85e2254be08e14e282589b225850db..cf17a84e67a36af789c4fe453b63c63ff3de46b1 100644
--- a/base/lazy_instance_unittest.cc
+++ b/base/lazy_instance_unittest.cc
@@ -10,11 +10,6 @@
 
 namespace {
 
-class ShadowingAtExitManager : public base::AtExitManager {
- public:
-  ShadowingAtExitManager() : AtExitManager(true) { }
-};
-
 base::AtomicSequenceNumber constructed_seq_(base::LINKER_INITIALIZED);
 base::AtomicSequenceNumber destructed_seq_(base::LINKER_INITIALIZED);
 
@@ -63,7 +58,7 @@ static base::LazyInstance<ConstructAndDestructLogger> lazy_logger(
 
 TEST(LazyInstanceTest, Basic) {
   {
-    ShadowingAtExitManager shadow;
+    base::ShadowingAtExitManager shadow;
 
     EXPECT_EQ(0, constructed_seq_.GetNext());
     EXPECT_EQ(0, destructed_seq_.GetNext());
@@ -84,7 +79,7 @@ static base::LazyInstance<SlowConstructor> lazy_slow(base::LINKER_INITIALIZED);
 
 TEST(LazyInstanceTest, ConstructorThreadSafety) {
   {
-    ShadowingAtExitManager shadow;
+    base::ShadowingAtExitManager shadow;
 
     SlowDelegate delegate(&lazy_slow);
     EXPECT_EQ(0, SlowConstructor::constructed);