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

chrome/browser/extensions/external_policy_loader_unittest.cc

Index: chrome/browser/extensions/external_policy_loader_unittest.cc
diff --git a/chrome/browser/extensions/external_policy_loader_unittest.cc b/chrome/browser/extensions/external_policy_loader_unittest.cc
index 20ffad3474e3057c743d442b1616009098fcb2d0..4c17ce4ff71905824f56d3a3988f18a7f81cb2de 100644
--- a/chrome/browser/extensions/external_policy_loader_unittest.cc
+++ b/chrome/browser/extensions/external_policy_loader_unittest.cc
@@ -70,23 +70,22 @@ class MockExternalPolicyProviderVisitor
     EXPECT_TRUE(expected_extensions_.empty());
   }
 
-  virtual bool OnExternalExtensionFileFound(const std::string& id,
-                                            const Version* version,
-                                            const base::FilePath& path,
-                                            Manifest::Location unused,
-                                            int unused2,
-                                            bool unused3) override {
+  bool OnExternalExtensionFileFound(const std::string& id,
+                                    const Version* version,
+                                    const base::FilePath& path,
+                                    Manifest::Location unused,
+                                    int unused2,
+                                    bool unused3) override {
     ADD_FAILURE() << "There should be no external extensions from files.";
     return false;
   }
 
-  virtual bool OnExternalExtensionUpdateUrlFound(
-      const std::string& id,
-      const std::string& install_parameter,
-      const GURL& update_url,
-      Manifest::Location location,
-      int unused1,
-      bool unused2) override {
+  bool OnExternalExtensionUpdateUrlFound(const std::string& id,
+                                         const std::string& install_parameter,
+                                         const GURL& update_url,
+                                         Manifest::Location location,
+                                         int unused1,
+                                         bool unused2) override {
     // Extension has the correct location.
     EXPECT_EQ(Manifest::EXTERNAL_POLICY_DOWNLOAD, location);
 
@@ -102,7 +101,7 @@ class MockExternalPolicyProviderVisitor
     return true;
   }
 
-  virtual void OnExternalProviderReady(
+  void OnExternalProviderReady(
       const ExternalProviderInterface* provider) override {
     EXPECT_EQ(provider, provider_.get());
     EXPECT_TRUE(provider->IsReady());