Move bezel event routing for the shelf into ShelfLayoutManager

ash/wm/system_gesture_event_filter.cc

Index: ash/wm/system_gesture_event_filter.cc
diff --git a/ash/wm/system_gesture_event_filter.cc b/ash/wm/system_gesture_event_filter.cc
index aff065bb561f13d1e75778b146ee52cfe0e88529..029ab720f4e6e1a064ae81b77d43d17b5968a00d 100644
--- a/ash/wm/system_gesture_event_filter.cc
+++ b/ash/wm/system_gesture_event_filter.cc
@@ -11,7 +11,6 @@
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
 #include "ash/shell_window_ids.h"
-#include "ash/wm/gestures/border_gesture_handler.h"
 #include "ash/wm/gestures/long_press_affordance_handler.h"
 #include "ash/wm/gestures/system_pinch_handler.h"
 #include "ash/wm/gestures/two_finger_drag_handler.h"
@@ -45,7 +44,6 @@ namespace internal {
 SystemGestureEventFilter::SystemGestureEventFilter()
     : system_gestures_enabled_(CommandLine::ForCurrentProcess()->
           HasSwitch(ash::switches::kAshEnableAdvancedGestures)),
-      border_gestures_(new BorderGestureHandler),
       long_press_affordance_(new LongPressAffordanceHandler),
       two_finger_drag_(new TwoFingerDragHandler) {
 }
@@ -77,11 +75,6 @@ void SystemGestureEventFilter::OnGestureEvent(ui::GestureEvent* event) {
   long_press_affordance_->ProcessEvent(target, event,
       event->GetLowestTouchId());
 
-  if (border_gestures_->ProcessGestureEvent(target, *event)) {
-    event->StopPropagation();
-    return;
-  }
-
   if (two_finger_drag_->ProcessGestureEvent(target, *event)) {
     event->StopPropagation();
     return;