| Index: ui/events/gesture_detection/gesture_detector.cc
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| diff --git a/ui/events/gesture_detection/gesture_detector.cc b/ui/events/gesture_detection/gesture_detector.cc
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| index d1e1c3844bd5de27d0bf656b8e6957a8fca634c2..1d26d730d28a7f7a04ea1c8cbd4c56d1b5db9e2e 100644
 | 
| --- a/ui/events/gesture_detection/gesture_detector.cc
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| +++ b/ui/events/gesture_detection/gesture_detector.cc
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| @@ -178,6 +178,11 @@ bool GestureDetector::OnTouchEvent(const MotionEvent& ev) {
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|  
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|    switch (action) {
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|      case MotionEvent::ACTION_NONE:
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| +    case MotionEvent::ACTION_HOVER_ENTER:
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| +    case MotionEvent::ACTION_HOVER_EXIT:
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| +    case MotionEvent::ACTION_HOVER_MOVE:
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| +    case MotionEvent::ACTION_BUTTON_PRESS:
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| +    case MotionEvent::ACTION_BUTTON_RELEASE:
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|        NOTREACHED();
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|        return handled;
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|  
 | 
| 
 |