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

chrome/browser/safe_browsing/protocol_manager_unittest.cc

Index: chrome/browser/safe_browsing/protocol_manager_unittest.cc
diff --git a/chrome/browser/safe_browsing/protocol_manager_unittest.cc b/chrome/browser/safe_browsing/protocol_manager_unittest.cc
index 2bf6b3d75f1981b5c0a57894f196886dacee61ea..852a20d420e5316dd357f8a5e2a4346ab9483377 100644
--- a/chrome/browser/safe_browsing/protocol_manager_unittest.cc
+++ b/chrome/browser/safe_browsing/protocol_manager_unittest.cc
@@ -315,7 +315,7 @@ namespace {
 class MockProtocolDelegate : public SafeBrowsingProtocolManagerDelegate {
  public:
   MockProtocolDelegate() {}
-  virtual ~MockProtocolDelegate() {}
+  ~MockProtocolDelegate() override {}
 
   MOCK_METHOD0(UpdateStarted, void());
   MOCK_METHOD1(UpdateFinished, void(bool));
@@ -328,17 +328,17 @@ class MockProtocolDelegate : public SafeBrowsingProtocolManagerDelegate {
   MOCK_METHOD3(AddChunksRaw, void(const std::string& lists,
                                   const ScopedVector<SBChunkData>& chunks,
                                   AddChunksCallback));
-  virtual void AddChunks(const std::string& list,
-                         scoped_ptr<ScopedVector<SBChunkData> > chunks,
-                         AddChunksCallback callback) override {
+  void AddChunks(const std::string& list,
+                 scoped_ptr<ScopedVector<SBChunkData>> chunks,
+                 AddChunksCallback callback) override {
     AddChunksRaw(list, *chunks, callback);
   }
 
   // TODO(shess): Actually test this case somewhere.
   MOCK_METHOD1(DeleteChunksRaw,
                void(const std::vector<SBChunkDelete>& chunk_deletes));
-  virtual void DeleteChunks(
-      scoped_ptr<std::vector<SBChunkDelete> > chunk_deletes) override{
+  void DeleteChunks(
+      scoped_ptr<std::vector<SBChunkDelete>> chunk_deletes) override {
     DeleteChunksRaw(*chunk_deletes);
   }
 };