Standardize usage of virtual/override/final in content/

content/child/indexed_db/webidbcursor_impl_unittest.cc

Index: content/child/indexed_db/webidbcursor_impl_unittest.cc
diff --git a/content/child/indexed_db/webidbcursor_impl_unittest.cc b/content/child/indexed_db/webidbcursor_impl_unittest.cc
index 61a0c26cc83949b8201b6546a1fab272e06128c8..ab56cd2d330883598371748915f8c7b51fbc4cb8 100644
--- a/content/child/indexed_db/webidbcursor_impl_unittest.cc
+++ b/content/child/indexed_db/webidbcursor_impl_unittest.cc
@@ -38,39 +38,39 @@ class MockDispatcher : public IndexedDBDispatcher {
         continue_calls_(0),
         destroyed_cursor_id_(0) {}
 
-  virtual void RequestIDBCursorPrefetch(int n,
-                                        WebIDBCallbacks* callbacks,
-                                        int32 ipc_cursor_id) override {
+  void RequestIDBCursorPrefetch(int n,
+                                WebIDBCallbacks* callbacks,
+                                int32 ipc_cursor_id) override {
     ++prefetch_calls_;
     last_prefetch_count_ = n;
     callbacks_.reset(callbacks);
   }
 
-  virtual void RequestIDBCursorPrefetchReset(int used_prefetches,
-                                             int unused_prefetches,
-                                             int32 ipc_cursor_id) override {
+  void RequestIDBCursorPrefetchReset(int used_prefetches,
+                                     int unused_prefetches,
+                                     int32 ipc_cursor_id) override {
     ++reset_calls_;
     last_used_count_ = used_prefetches;
   }
 
-  virtual void RequestIDBCursorAdvance(unsigned long count,
-                                       WebIDBCallbacks* callbacks,
-                                       int32 ipc_cursor_id,
-                                       int64 transaction_id) override {
+  void RequestIDBCursorAdvance(unsigned long count,
+                               WebIDBCallbacks* callbacks,
+                               int32 ipc_cursor_id,
+                               int64 transaction_id) override {
     ++advance_calls_;
     callbacks_.reset(callbacks);
   }
 
-  virtual void RequestIDBCursorContinue(const IndexedDBKey& key,
-                                        const IndexedDBKey& primary_key,
-                                        WebIDBCallbacks* callbacks,
-                                        int32 ipc_cursor_id,
-                                        int64 transaction_id) override {
+  void RequestIDBCursorContinue(const IndexedDBKey& key,
+                                const IndexedDBKey& primary_key,
+                                WebIDBCallbacks* callbacks,
+                                int32 ipc_cursor_id,
+                                int64 transaction_id) override {
     ++continue_calls_;
     callbacks_.reset(callbacks);
   }
 
-  virtual void CursorDestroyed(int32 ipc_cursor_id) override {
+  void CursorDestroyed(int32 ipc_cursor_id) override {
     destroyed_cursor_id_ = ipc_cursor_id;
   }