Added UMA statistics for changing the active window via click or touch events.

ui/wm/core/focus_controller.cc

Index: ui/wm/core/focus_controller.cc
diff --git a/ui/wm/core/focus_controller.cc b/ui/wm/core/focus_controller.cc
index 446e82c269fc4e852491886d1207ecfeaddc93cf..d76689ae7ccca2c37a6f879bb404b04a6a98e49b 100644
--- a/ui/wm/core/focus_controller.cc
+++ b/ui/wm/core/focus_controller.cc
@@ -11,7 +11,6 @@
 #include "ui/aura/env.h"
 #include "ui/aura/window_tracker.h"
 #include "ui/base/ime/text_input_focus_manager.h"
-#include "ui/events/event.h"
 #include "ui/wm/core/focus_rules.h"
 #include "ui/wm/core/window_util.h"
 #include "ui/wm/public/activation_change_observer.h"
@@ -151,30 +150,6 @@ aura::Window* FocusController::GetFocusedWindow() {
 }
 
 ////////////////////////////////////////////////////////////////////////////////
-// FocusController, ui::EventHandler implementation:
-void FocusController::OnKeyEvent(ui::KeyEvent* event) {
-}
-
-void FocusController::OnMouseEvent(ui::MouseEvent* event) {
-  if (event->type() == ui::ET_MOUSE_PRESSED && !event->handled())
-    WindowFocusedFromInputEvent(static_cast<aura::Window*>(event->target()));
-}
-
-void FocusController::OnScrollEvent(ui::ScrollEvent* event) {
-}
-
-void FocusController::OnTouchEvent(ui::TouchEvent* event) {
-}
-
-void FocusController::OnGestureEvent(ui::GestureEvent* event) {
-  if (event->type() == ui::ET_GESTURE_BEGIN &&
-      event->details().touch_points() == 1 &&
-      !event->handled()) {
-    WindowFocusedFromInputEvent(static_cast<aura::Window*>(event->target()));
-  }
-}
-
-////////////////////////////////////////////////////////////////////////////////
 // FocusController, aura::WindowObserver implementation:
 
 void FocusController::OnWindowVisibilityChanged(aura::Window* window,
@@ -344,12 +319,4 @@ void FocusController::WindowLostFocusFromDispositionChange(
   }
 }
 
-void FocusController::WindowFocusedFromInputEvent(aura::Window* window) {
-  // Only focus |window| if it or any of its parents can be focused. Otherwise
-  // FocusWindow() will focus the topmost window, which may not be the
-  // currently focused one.
-  if (rules_->CanFocusWindow(GetToplevelWindow(window)))
-    FocusWindow(window);
-}
-
 }  // namespace wm