Enable Clang warnings in .cc files for Linux+[Aura/ChromeOS]

content/browser/web_contents/touch_editable_impl_aura_browsertest.cc

Index: content/browser/web_contents/touch_editable_impl_aura_browsertest.cc
diff --git a/content/browser/web_contents/touch_editable_impl_aura_browsertest.cc b/content/browser/web_contents/touch_editable_impl_aura_browsertest.cc
index 12fa68728481f515448e225fbfa27684594856a5..69c5b2098deb014d17c9710e9b50e3ba65410ca0 100644
--- a/content/browser/web_contents/touch_editable_impl_aura_browsertest.cc
+++ b/content/browser/web_contents/touch_editable_impl_aura_browsertest.cc
@@ -43,15 +43,15 @@ class TestTouchEditableImplAura : public TouchEditableImplAura {
     waiting_for_gesture_ack_callback_ = false;
   }
 
-  void OnSelectionOrCursorChanged(const gfx::Rect& anchor,
-                                  const gfx::Rect& focus) OVERRIDE {
+  virtual void OnSelectionOrCursorChanged(const gfx::Rect& anchor,
+                                          const gfx::Rect& focus) OVERRIDE {
     selection_changed_callback_arrived_ = true;
     TouchEditableImplAura::OnSelectionOrCursorChanged(anchor, focus);
     if (waiting_for_selection_changed_callback_)
       selection_changed_wait_run_loop_->Quit();
   }
 
-  void GestureEventAck(int gesture_event_type) OVERRIDE {
+  virtual void GestureEventAck(int gesture_event_type) OVERRIDE {
     gesture_ack_callback_arrived_ = true;
     TouchEditableImplAura::GestureEventAck(gesture_event_type);
     if (waiting_for_gesture_ack_callback_)