Standardize usage of virtual/override/final specifiers.

content/renderer/pepper/pepper_file_chooser_host_unittest.cc

Index: content/renderer/pepper/pepper_file_chooser_host_unittest.cc
diff --git a/content/renderer/pepper/pepper_file_chooser_host_unittest.cc b/content/renderer/pepper/pepper_file_chooser_host_unittest.cc
index 6f52b04acae2f5790ad30c32d47ab9eab00ab123..3df6520440e2bbb76d38406c3c4a41a955c52bfd 100644
--- a/content/renderer/pepper/pepper_file_chooser_host_unittest.cc
+++ b/content/renderer/pepper/pepper_file_chooser_host_unittest.cc
@@ -33,14 +33,14 @@ class PepperFileChooserHostTest : public RenderViewTest {
  public:
   PepperFileChooserHostTest() : pp_instance_(123456) {}
 
-  virtual void SetUp() {
+  void SetUp() override {
     SetContentClient(&client_);
     RenderViewTest::SetUp();
     ppapi::ProxyLock::DisableLockingOnThreadForTest();
 
     globals_.GetResourceTracker()->DidCreateInstance(pp_instance_);
   }
-  virtual void TearDown() {
+  void TearDown() override {
     globals_.GetResourceTracker()->DidDeleteInstance(pp_instance_);
 
     RenderViewTest::TearDown();