Use .service.exe extension for service binaries on Windows

services/service_manager/runner/host/child_process_host_unittest.cc

Index: services/service_manager/runner/host/child_process_host_unittest.cc
diff --git a/services/service_manager/runner/host/child_process_host_unittest.cc b/services/service_manager/runner/host/child_process_host_unittest.cc
index a88049291e83a2ba5ed6672a363e35fc68414a28..ea3f5e27f983110b637e1ec9c9b749761672eb2a 100644
--- a/services/service_manager/runner/host/child_process_host_unittest.cc
+++ b/services/service_manager/runner/host/child_process_host_unittest.cc
@@ -29,8 +29,14 @@ namespace {
 const char kTestServiceName[] = "host_test_service";
 
 const base::FilePath::CharType kPackagesPath[] = FILE_PATH_LITERAL("Packages");
+
+#if defined(OS_WIN)
+const base::FilePath::CharType kServiceExtension[] =
+    FILE_PATH_LITERAL(".service.exe");
+#else
 const base::FilePath::CharType kServiceExtension[] =
     FILE_PATH_LITERAL(".service");
+#endif
 
 void ProcessReadyCallbackAdapater(const base::Closure& callback,
                                   base::ProcessId process_id) {