Removes mouse listeners from UserInputMonitor.

media/base/keyboard_event_counter.cc

Index: media/base/keyboard_event_counter.cc
diff --git a/media/base/keyboard_event_counter.cc b/media/base/keyboard_event_counter.cc
index 8432aec37e38171d0dd1ef24057d91a6af8d0dfd..c9947c7af763ebd7c36e43e22dfdf2f6c28434b6 100644
--- a/media/base/keyboard_event_counter.cc
+++ b/media/base/keyboard_event_counter.cc
@@ -13,12 +13,6 @@ KeyboardEventCounter::KeyboardEventCounter() : total_key_presses_(0) {}
 
 KeyboardEventCounter::~KeyboardEventCounter() {}
 
-void KeyboardEventCounter::Reset() {
-  pressed_keys_.clear();
-  base::subtle::NoBarrier_Store(
-      reinterpret_cast<base::subtle::AtomicWord*>(&total_key_presses_), 0);
-}
-
 void KeyboardEventCounter::OnKeyboardEvent(ui::EventType event,
                                            ui::KeyboardCode key_code) {
   // Updates the pressed keys and the total count of key presses.