replace OVERRIDE and FINAL with override and final in chrome/browser/[r-z]*

chrome/browser/shell_integration_linux_unittest.cc

Index: chrome/browser/shell_integration_linux_unittest.cc
diff --git a/chrome/browser/shell_integration_linux_unittest.cc b/chrome/browser/shell_integration_linux_unittest.cc
index 8e4641956424d78fd68257dd8687e71ad1a16ef9..051b566eda09029078f0d61174803a576b5e363b 100644
--- a/chrome/browser/shell_integration_linux_unittest.cc
+++ b/chrome/browser/shell_integration_linux_unittest.cc
@@ -43,7 +43,7 @@ class MockEnvironment : public base::Environment {
     variables_[name] = value;
   }
 
-  virtual bool GetVar(const char* variable_name, std::string* result) OVERRIDE {
+  virtual bool GetVar(const char* variable_name, std::string* result) override {
     if (ContainsKey(variables_, variable_name)) {
       *result = variables_[variable_name];
       return true;
@@ -53,12 +53,12 @@ class MockEnvironment : public base::Environment {
   }
 
   virtual bool SetVar(const char* variable_name,
-                      const std::string& new_value) OVERRIDE {
+                      const std::string& new_value) override {
     ADD_FAILURE();
     return false;
   }
 
-  virtual bool UnSetVar(const char* variable_name) OVERRIDE {
+  virtual bool UnSetVar(const char* variable_name) override {
     ADD_FAILURE();
     return false;
   }