Limit number of service instances passed to onServiceList listeners.

chrome/browser/extensions/api/mdns/mdns_apitest.cc

Index: chrome/browser/extensions/api/mdns/mdns_apitest.cc
diff --git a/chrome/browser/extensions/api/mdns/mdns_apitest.cc b/chrome/browser/extensions/api/mdns/mdns_apitest.cc
index 80f6e8b5b35a002805c90244d378f307466d3c5d..f7b87be9905ccc1a4034e2ba088353669f939d27 100644
--- a/chrome/browser/extensions/api/mdns/mdns_apitest.cc
+++ b/chrome/browser/extensions/api/mdns/mdns_apitest.cc
@@ -165,3 +165,17 @@ IN_PROC_BROWSER_TEST_F(MDnsAPITest, MAYBE_RegisterTooManyListeners) {
   EXPECT_TRUE(RunPlatformAppTest("mdns/api-packaged-apps"))
       << message_;
 }
+
+// TODO(justinlin): Win Dbg has a workaround that makes RunExtensionSubtest
+// always return true without actually running the test. Remove when fixed.
+#if defined(OS_WIN) && !defined(NDEBUG)
+#define MAYBE_MaxServiceInstancesPerEventConst \
+  DISABLED_MaxServiceInstancesPerEventConst
+#else
+#define MAYBE_MaxServiceInstancesPerEventConst MaxServiceInstancesPerEventConst
+#endif
+// Test loading extension and registering multiple listeners.
+IN_PROC_BROWSER_TEST_F(MDnsAPITest, MAYBE_MaxServiceInstancesPerEventConst) {
+  EXPECT_TRUE(RunExtensionSubtest("mdns/api",
+                                  "get_max_service_instances.html"));
+}