DO NOT MERGE Remove window obscurement information.

If ACTION_OUTSIDE_EVENTS contain information about whether the touch is
obscured, then a pattern of invisible, untouchable, unfocusable
SYSTEM_ALERT_WINDOWS can be placed across the screen to determine
approximate locations of touch events without the user knowing.

Bug: 31097064
Test: cts-tradefed run cts --class android.security.cts.MotionEventTest
Change-Id: Ie30dcc2402d5422a19a43ffe7d1411d91681efc2

diff --git a/services/inputflinger/InputDispatcher.cpp b/services/inputflinger/InputDispatcher.cpp
index c9e876f..ec3ec7b 100644 (file)
--- a/services/inputflinger/InputDispatcher.cpp
+++ b/services/inputflinger/InputDispatcher.cpp
@@ -1222,15 +1222,8 @@ int32_t InputDispatcher::findTouchedWindowTargetsLocked(nsecs_t currentTime,
 
                 if (maskedAction == AMOTION_EVENT_ACTION_DOWN
                         && (flags & InputWindowInfo::FLAG_WATCH_OUTSIDE_TOUCH)) {
-                    int32_t outsideTargetFlags = InputTarget::FLAG_DISPATCH_AS_OUTSIDE;
-                    if (isWindowObscuredAtPointLocked(windowHandle, x, y)) {
-                        outsideTargetFlags |= InputTarget::FLAG_WINDOW_IS_OBSCURED;
-                    } else if (isWindowObscuredLocked(windowHandle)) {
-                        outsideTargetFlags |= InputTarget::FLAG_WINDOW_IS_PARTIALLY_OBSCURED;
-                    }
-
                     mTempTouchState.addOrUpdateWindow(
-                            windowHandle, outsideTargetFlags, BitSet32(0));
+                            windowHandle, InputTarget::FLAG_DISPATCH_AS_OUTSIDE, BitSet32(0));
                 }
             }
         }