cc: Make damage on delegated frame damage the host layer.

cc/test/layer_tree_test_common.cc

Index: cc/test/layer_tree_test_common.cc
diff --git a/cc/test/layer_tree_test_common.cc b/cc/test/layer_tree_test_common.cc
index 2240279769602a02326b67e08d14edddd7989334..82603d7e60f041db9ccf5c2616b857fffb77b2a3 100644
--- a/cc/test/layer_tree_test_common.cc
+++ b/cc/test/layer_tree_test_common.cc
@@ -289,6 +289,7 @@ ThreadedTest::ThreadedTest()
     , m_timedOut(false)
     , m_scheduled(false)
     , m_started(false)
+    , m_ended(false)
     , m_implThread(0)
     , m_weakFactory(ALLOW_THIS_IN_INITIALIZER_LIST(this))
 {
@@ -399,6 +400,8 @@ void ThreadedTest::scheduleComposite()
 
 void ThreadedTest::realEndTest()
 {
+    m_ended = true;
+
     if (m_layerTreeHost && proxy()->commitPendingForTesting()) {
         proxy()->mainThread()->postTask(base::Bind(&ThreadedTest::realEndTest, m_mainThreadWeakPtr));
         return;