[web_runner][test] Inject sysmem service

This will be used by scenic to allocate display textures.

Test: CQ
Change-Id: Ibdaf75cec514beebfdab3fd78702813a8cc62fa5
diff --git a/tests/web_runner_tests/meta/web_runner_pixel_tests.cmx b/tests/web_runner_tests/meta/web_runner_pixel_tests.cmx
index 36a4ba8..3cd960c 100644
--- a/tests/web_runner_tests/meta/web_runner_pixel_tests.cmx
+++ b/tests/web_runner_tests/meta/web_runner_pixel_tests.cmx
@@ -4,6 +4,7 @@
             "injected-services": {
                 "chromium.web.ContextProvider": "fuchsia-pkg://fuchsia.com/chromium#meta/chromium.cmx",
                 "fuchsia.fonts.Provider": "fuchsia-pkg://fuchsia.com/fonts#meta/fonts.cmx",
+                "fuchsia.sysmem.Allocator": "fuchsia-pkg://fuchsia.com/sysmem_connector#meta/sysmem_connector.cmx",
                 "fuchsia.ui.input.ImeService": "fuchsia-pkg://fuchsia.com/ime_service#meta/ime_service.cmx",
                 "fuchsia.ui.input.ImeVisibilityService": "fuchsia-pkg://fuchsia.com/ime_service#meta/ime_service.cmx",
                 "fuchsia.ui.input.InputDeviceRegistry": "fuchsia-pkg://fuchsia.com/root_presenter#meta/root_presenter.cmx",