Standardize usage of virtual/override/final in content/browser/

content/browser/renderer_host/input/gesture_text_selector_unittest.cc

Index: content/browser/renderer_host/input/gesture_text_selector_unittest.cc
diff --git a/content/browser/renderer_host/input/gesture_text_selector_unittest.cc b/content/browser/renderer_host/input/gesture_text_selector_unittest.cc
index ee8240e4638ef02428e60a9c0fc158bd331663a6..30705868eb3c941c017b6c22c85b0f574f5563a2 100644
--- a/content/browser/renderer_host/input/gesture_text_selector_unittest.cc
+++ b/content/browser/renderer_host/input/gesture_text_selector_unittest.cc
@@ -37,17 +37,17 @@ class GestureTextSelectorTest : public testing::Test,
   }
 
   // GestureTextSelectorClient implementation.
-  virtual void ShowSelectionHandlesAutomatically() override {
+  void ShowSelectionHandlesAutomatically() override {
     event_log_.push_back("Show");
   }
 
-  virtual void SelectRange(float x1, float y1, float x2, float y2) override {
+  void SelectRange(float x1, float y1, float x2, float y2) override {
     std::stringstream ss;
     ss << "SelectRange(" << x1 << ", " << y1 << ", " << x2 << ", " << y2 << ")";
     event_log_.push_back(ss.str());
   }
 
-  virtual void LongPress(base::TimeTicks time, float x, float y) override {
+  void LongPress(base::TimeTicks time, float x, float y) override {
     event_log_.push_back("LongPress");
   }