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/unit/RenderNodeTests.cpp b/libs/hwui/tests/unit/RenderNodeTests.cpp
index e727ea8..690a60a4 100644
--- a/libs/hwui/tests/unit/RenderNodeTests.cpp
+++ b/libs/hwui/tests/unit/RenderNodeTests.cpp
@@ -239,19 +239,21 @@
     TestUtils::runOnRenderThreadUnmanaged([&] (RenderThread&) {
         TestUtils::syncHierarchyPropertiesAndDisplayList(node);
     });
-    auto& counts = TestUtils::countsForFunctor(functor);
+    auto counts = TestUtils::copyCountsForFunctor(functor);
     EXPECT_EQ(1, counts.sync);
     EXPECT_EQ(0, counts.destroyed);
 
     TestUtils::recordNode(*node, [&](Canvas& canvas) {
         canvas.drawWebViewFunctor(functor);
     });
+    counts = TestUtils::copyCountsForFunctor(functor);
     EXPECT_EQ(1, counts.sync);
     EXPECT_EQ(0, counts.destroyed);
 
     TestUtils::runOnRenderThreadUnmanaged([&] (RenderThread&) {
         TestUtils::syncHierarchyPropertiesAndDisplayList(node);
     });
+    counts = TestUtils::copyCountsForFunctor(functor);
     EXPECT_EQ(2, counts.sync);
     EXPECT_EQ(0, counts.destroyed);
 
@@ -265,6 +267,7 @@
     });
     // Fence on any remaining post'd work
     TestUtils::runOnRenderThreadUnmanaged([] (RenderThread&) {});
+    counts = TestUtils::copyCountsForFunctor(functor);
     EXPECT_EQ(2, counts.sync);
     EXPECT_EQ(1, counts.destroyed);
 }
diff --git a/libs/hwui/tests/unit/SkiaDisplayListTests.cpp b/libs/hwui/tests/unit/SkiaDisplayListTests.cpp
index 064d42e..26b4729 100644
--- a/libs/hwui/tests/unit/SkiaDisplayListTests.cpp
+++ b/libs/hwui/tests/unit/SkiaDisplayListTests.cpp
@@ -101,7 +101,7 @@
     SkCanvas dummyCanvas;
 
     int functor1 = TestUtils::createMockFunctor();
-    auto& counts = TestUtils::countsForFunctor(functor1);
+    auto counts = TestUtils::copyCountsForFunctor(functor1);
     skiaDL.mChildFunctors.push_back(
             skiaDL.allocateDrawable<GLFunctorDrawable>(functor1, &dummyCanvas));
     WebViewFunctor_release(functor1);
@@ -118,6 +118,7 @@
         });
     });
 
+    counts = TestUtils::copyCountsForFunctor(functor1);
     EXPECT_EQ(counts.sync, 1);
     EXPECT_EQ(counts.destroyed, 0);
     EXPECT_EQ(vectorDrawable.mutateProperties()->getBounds(), bounds);
@@ -126,6 +127,7 @@
     TestUtils::runOnRenderThread([](auto&) {
         // Fence
     });
+    counts = TestUtils::copyCountsForFunctor(functor1);
     EXPECT_EQ(counts.destroyed, 1);
 }
 
diff --git a/libs/hwui/tests/unit/WebViewFunctorManagerTests.cpp b/libs/hwui/tests/unit/WebViewFunctorManagerTests.cpp
index 5e8f13d..09ce98a 100644
--- a/libs/hwui/tests/unit/WebViewFunctorManagerTests.cpp
+++ b/libs/hwui/tests/unit/WebViewFunctorManagerTests.cpp
@@ -40,7 +40,7 @@
     TestUtils::runOnRenderThreadUnmanaged([](renderthread::RenderThread&) {
         // Empty, don't care
     });
-    auto& counts = TestUtils::countsForFunctor(functor);
+    auto counts = TestUtils::copyCountsForFunctor(functor);
     // We never initialized, so contextDestroyed == 0
     EXPECT_EQ(0, counts.contextDestroyed);
     EXPECT_EQ(1, counts.destroyed);
@@ -59,7 +59,7 @@
     TestUtils::runOnRenderThreadUnmanaged([](renderthread::RenderThread&) {
         // fence
     });
-    auto& counts = TestUtils::countsForFunctor(functor);
+    auto counts = TestUtils::copyCountsForFunctor(functor);
     EXPECT_EQ(0, counts.sync);
     EXPECT_EQ(0, counts.contextDestroyed);
     EXPECT_EQ(0, counts.destroyed);
@@ -69,6 +69,7 @@
         handle->sync(syncData);
     });
 
+    counts = TestUtils::copyCountsForFunctor(functor);
     EXPECT_EQ(1, counts.sync);
 
     TestUtils::runOnRenderThreadUnmanaged([&](auto&) {
@@ -76,6 +77,7 @@
         handle->sync(syncData);
     });
 
+    counts = TestUtils::copyCountsForFunctor(functor);
     EXPECT_EQ(2, counts.sync);
 
     handle.clear();
@@ -84,6 +86,7 @@
         // fence
     });
 
+    counts = TestUtils::copyCountsForFunctor(functor);
     EXPECT_EQ(2, counts.sync);
     EXPECT_EQ(0, counts.contextDestroyed);
     EXPECT_EQ(1, counts.destroyed);
@@ -98,7 +101,6 @@
     auto handle = WebViewFunctorManager::instance().handleFor(functor);
     ASSERT_TRUE(handle);
     WebViewFunctor_release(functor);
-    auto& counts = TestUtils::countsForFunctor(functor);
     for (int i = 0; i < 5; i++) {
         TestUtils::runOnRenderThreadUnmanaged([&](auto&) {
             WebViewSyncData syncData;
@@ -112,6 +114,7 @@
     TestUtils::runOnRenderThreadUnmanaged([](renderthread::RenderThread&) {
         // fence
     });
+    auto counts = TestUtils::copyCountsForFunctor(functor);
     EXPECT_EQ(5, counts.sync);
     EXPECT_EQ(10, counts.glesDraw);
     EXPECT_EQ(1, counts.contextDestroyed);
@@ -127,13 +130,13 @@
     auto handle = WebViewFunctorManager::instance().handleFor(functor);
     ASSERT_TRUE(handle);
     WebViewFunctor_release(functor);
-    auto& counts = TestUtils::countsForFunctor(functor);
     TestUtils::runOnRenderThreadUnmanaged([&](auto&) {
         WebViewSyncData syncData;
         handle->sync(syncData);
         DrawGlInfo drawInfo;
         handle->drawGl(drawInfo);
     });
+    auto counts = TestUtils::copyCountsForFunctor(functor);
     EXPECT_EQ(1, counts.sync);
     EXPECT_EQ(1, counts.glesDraw);
     EXPECT_EQ(0, counts.contextDestroyed);
@@ -141,6 +144,7 @@
     TestUtils::runOnRenderThreadUnmanaged([](auto& rt) {
         rt.destroyRenderingContext();
     });
+    counts = TestUtils::copyCountsForFunctor(functor);
     EXPECT_EQ(1, counts.sync);
     EXPECT_EQ(1, counts.glesDraw);
     EXPECT_EQ(1, counts.contextDestroyed);
@@ -151,6 +155,7 @@
         DrawGlInfo drawInfo;
         handle->drawGl(drawInfo);
     });
+    counts = TestUtils::copyCountsForFunctor(functor);
     EXPECT_EQ(2, counts.sync);
     EXPECT_EQ(2, counts.glesDraw);
     EXPECT_EQ(1, counts.contextDestroyed);
@@ -159,6 +164,7 @@
     TestUtils::runOnRenderThreadUnmanaged([](renderthread::RenderThread&) {
         // fence
     });
+    counts = TestUtils::copyCountsForFunctor(functor);
     EXPECT_EQ(2, counts.sync);
     EXPECT_EQ(2, counts.glesDraw);
     EXPECT_EQ(2, counts.contextDestroyed);