commit 5508ca2c191f8fdf29d8898890a58bf1a3a225b3
author Siarhei Vishniakou <svv@google.com> Fri Aug 04 12:37:47 2017 -0700
committer Siarhei Vishniakou <svv@google.com> Fri Aug 04 12:37:47 2017 -0700
tree ce45bfc25bc9a9faa59b13abf49f6794c4932feb
parent 59485525a6047453e6ba16c03989381e2a0d56ec

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: Iebbb68231cbb76f87241201e7640a1fe3e188625

services/inputflinger/InputDispatcher.cpp

diff --git a/services/inputflinger/InputDispatcher.cpp b/services/inputflinger/InputDispatcher.cpp
index 3f69d49..e48c53a 100644
--- a/services/inputflinger/InputDispatcher.cpp
+++ b/services/inputflinger/InputDispatcher.cpp
@@ -1224,15 +1224,8 @@
 
                 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));
                 }
             }
         }