Initialize DrawingState::trustedOverlay to false in constructor

To avoid it being initialised to true randomly.

Bug: 199483370
Bug: 196389741
Bug: 218605327
Change-Id: I75be2b1d305e22f8a71532b9f5b8ea6c469baaaa
Merged-In: I75be2b1d305e22f8a71532b9f5b8ea6c469baaaa
(cherry picked from commit edb375df82f6b48688d85c11dbca91adef088bc8)
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index e4a777f..75dd51c 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -134,6 +134,7 @@
     mDrawingState.frameTimelineInfo = {};
     mDrawingState.postTime = -1;
     mDrawingState.destinationFrame.makeInvalid();
+    mDrawingState.isTrustedOverlay = false;
 
     if (args.flags & ISurfaceComposerClient::eNoColorFill) {
         // Set an invalid color so there is no color fill.