events: Get rid of GestureStatus in favour of EventResult.

ash/launcher/launcher_button.cc

Index: ash/launcher/launcher_button.cc
diff --git a/ash/launcher/launcher_button.cc b/ash/launcher/launcher_button.cc
index dfbeb4c9b0577dc5a9b8b99283a8433ac067085b..d9a2583e66aea34d46202a76ca82e49c570c39f9 100644
--- a/ash/launcher/launcher_button.cc
+++ b/ash/launcher/launcher_button.cc
@@ -258,7 +258,7 @@ void LauncherButton::OnMouseExited(const ui::MouseEvent& event) {
   host_->MouseExitedButton(this);
 }
 
-ui::GestureStatus LauncherButton::OnGestureEvent(
+ui::EventResult LauncherButton::OnGestureEvent(
     const ui::GestureEvent& event) {
   switch (event.type()) {
     case ui::ET_GESTURE_TAP_DOWN:
@@ -269,13 +269,13 @@ ui::GestureStatus LauncherButton::OnGestureEvent(
       return CustomButton::OnGestureEvent(event);
     case ui::ET_GESTURE_SCROLL_BEGIN:
       host_->PointerPressedOnButton(this, LauncherButtonHost::TOUCH, event);
-      return ui::GESTURE_STATUS_CONSUMED;
+      return ui::ER_CONSUMED;
     case ui::ET_GESTURE_SCROLL_UPDATE:
       host_->PointerDraggedOnButton(this, LauncherButtonHost::TOUCH, event);
-      return ui::GESTURE_STATUS_CONSUMED;
+      return ui::ER_CONSUMED;
     case ui::ET_GESTURE_SCROLL_END:
       host_->PointerReleasedOnButton(this, LauncherButtonHost::TOUCH, false);
-      return ui::GESTURE_STATUS_CONSUMED;
+      return ui::ER_CONSUMED;
     default:
       return CustomButton::OnGestureEvent(event);
   }