Add virtual and OVERRIDE to base/ implementation files

base/threading/thread_local_unittest.cc

Index: base/threading/thread_local_unittest.cc
diff --git a/base/threading/thread_local_unittest.cc b/base/threading/thread_local_unittest.cc
index ba12898f31ff9cb6c18998655bd92ea83de02974..cf3cca324fa9e335f81cdbd7db9637671057ec1c 100644
--- a/base/threading/thread_local_unittest.cc
+++ b/base/threading/thread_local_unittest.cc
@@ -18,7 +18,7 @@ class ThreadLocalTesterBase : public base::DelegateSimpleThreadPool::Delegate {
 
   ThreadLocalTesterBase(TLPType* tlp, base::WaitableEvent* done)
       : tlp_(tlp), done_(done) { }
-  ~ThreadLocalTesterBase() { }
+  virtual ~ThreadLocalTesterBase() { }
 
  protected:
   TLPType* tlp_;
@@ -29,11 +29,11 @@ class SetThreadLocal : public ThreadLocalTesterBase {
  public:
   SetThreadLocal(TLPType* tlp, base::WaitableEvent* done)
       : ThreadLocalTesterBase(tlp, done), val_(NULL) { }
-  ~SetThreadLocal() { }
+  virtual ~SetThreadLocal() { }
 
   void set_value(ThreadLocalTesterBase* val) { val_ = val; }
 
-  virtual void Run() {
+  virtual void Run() OVERRIDE {
     DCHECK(!done_->IsSignaled());
     tlp_->Set(val_);
     done_->Signal();
@@ -47,11 +47,11 @@ class GetThreadLocal : public ThreadLocalTesterBase {
  public:
   GetThreadLocal(TLPType* tlp, base::WaitableEvent* done)
       : ThreadLocalTesterBase(tlp, done), ptr_(NULL) { }
-  ~GetThreadLocal() { }
+  virtual ~GetThreadLocal() { }
 
   void set_ptr(ThreadLocalTesterBase** ptr) { ptr_ = ptr; }
 
-  virtual void Run() {
+  virtual void Run() OVERRIDE {
     DCHECK(!done_->IsSignaled());
     *ptr_ = tlp_->Get();
     done_->Signal();