Update {virtual,override} to follow C++11 style in components.

components/autofill/content/browser/wallet/mock_wallet_client.h

Index: components/autofill/content/browser/wallet/mock_wallet_client.h
diff --git a/components/autofill/content/browser/wallet/mock_wallet_client.h b/components/autofill/content/browser/wallet/mock_wallet_client.h
index a3a3153dd886dadfe808f37b17ab04d4235ccacb..25bdd21e51aa7e6a6ce36abfc53124ce294461ea 100644
--- a/components/autofill/content/browser/wallet/mock_wallet_client.h
+++ b/components/autofill/content/browser/wallet/mock_wallet_client.h
@@ -24,7 +24,7 @@ class MockWalletClient : public WalletClient {
   MockWalletClient(net::URLRequestContextGetter* context,
                    WalletClientDelegate* delegate,
                    const GURL& source_url);
-  virtual ~MockWalletClient();
+  ~MockWalletClient() override;
 
   MOCK_METHOD2(GetWalletItems,
       void(const base::string16&, const base::string16&));
@@ -42,7 +42,7 @@ class MockWalletClient : public WalletClient {
 
   // Methods with scoped_ptrs can't be mocked but by using the implementation
   // below the same effect can be achieved.
-  virtual void SaveToWallet(
+  void SaveToWallet(
       scoped_ptr<Instrument> instrument,
       scoped_ptr<Address> address,
       const WalletItems::MaskedInstrument* reference_instrument,