Standardize usage of virtual/override/final in chrome/browser/safe_browsing/

chrome/browser/safe_browsing/malware_details_unittest.cc

Index: chrome/browser/safe_browsing/malware_details_unittest.cc
diff --git a/chrome/browser/safe_browsing/malware_details_unittest.cc b/chrome/browser/safe_browsing/malware_details_unittest.cc
index 3fc29057e2bc7e950f821fd1af96f66218aa5007..390c6b42895c9b9aaf517d311287e9e507c8927c 100644
--- a/chrome/browser/safe_browsing/malware_details_unittest.cc
+++ b/chrome/browser/safe_browsing/malware_details_unittest.cc
@@ -136,7 +136,7 @@ class MalwareDetailsWrap : public MalwareDetails {
   }
 
  private:
-  virtual ~MalwareDetailsWrap() {}
+  ~MalwareDetailsWrap() override {}
 };
 
 class MockSafeBrowsingUIManager : public SafeBrowsingUIManager {
@@ -147,8 +147,7 @@ class MockSafeBrowsingUIManager : public SafeBrowsingUIManager {
       : SafeBrowsingUIManager(NULL), run_loop_(NULL) {}
 
   // When the MalwareDetails is done, this is called.
-  virtual void SendSerializedMalwareDetails(
-      const std::string& serialized) override {
+  void SendSerializedMalwareDetails(const std::string& serialized) override {
     DVLOG(1) << "SendSerializedMalwareDetails";
     run_loop_->Quit();
     run_loop_ = NULL;
@@ -169,7 +168,7 @@ class MockSafeBrowsingUIManager : public SafeBrowsingUIManager {
   }
 
  private:
-  virtual ~MockSafeBrowsingUIManager() {}
+  ~MockSafeBrowsingUIManager() override {}
 
   std::string serialized_;
   DISALLOW_COPY_AND_ASSIGN(MockSafeBrowsingUIManager);