Reland "Increase the test timeout used when waiting for events to be traced"

This reverts commit aff0a04.

Reason for revert: b/323347575, b/210460522

Change-Id: I8f0b2a246dd25f6449e311411cd4d1b698706e88

Author: prabirmsp

services/inputflinger/tests/FakeInputTracingBackend.cpp

@@ -23,7 +23,11 @@ namespace android::inputdispatcher {
 
 namespace {
 
-constexpr auto TRACE_TIMEOUT = std::chrono::milliseconds(100);
+// Use a larger timeout while waiting for events to be traced, compared to the timeout used while
+// waiting to receive events through the input channel. Events are traced from a separate thread,
+// which does not have the same high thread priority as the InputDispatcher's thread, so the tracer
+// is expected to lag behind the Dispatcher at times.
+constexpr auto TRACE_TIMEOUT = std::chrono::seconds(5);
 
 base::ResultError<> error(const std::ostringstream& ss) {
     return base::ResultError(ss.str(), BAD_VALUE);