Deflake functor tests
sMockFunctorCounts was written to by the RenderThread, but read from the testing thread, so guard sMockFunctorCounts with a lock.
Bug: 353258633
Flag: EXEMPT test only
Test: hwui_unit_tests 100 times
Test: hwui_unit_tests --renderer skiavk 100 times
Change-Id: Icc95662f58aa675267522cf94c27eb2d9016800c
diff --git a/libs/hwui/tests/common/TestUtils.cpp b/libs/hwui/tests/common/TestUtils.cpp
index ad963dd..93118aea 100644
--- a/libs/hwui/tests/common/TestUtils.cpp
+++ b/libs/hwui/tests/common/TestUtils.cpp
@@ -40,6 +40,7 @@
namespace android {
namespace uirenderer {
+std::mutex TestUtils::sMutex;
std::unordered_map<int, TestUtils::CallCounts> TestUtils::sMockFunctorCounts{};
SkColor TestUtils::interpolateColor(float fraction, SkColor start, SkColor end) {