Support custom icon in search result.

chrome/test/BUILD.gn

Index: chrome/test/BUILD.gn
diff --git a/chrome/test/BUILD.gn b/chrome/test/BUILD.gn
index f0a939ead26105a7df6c9cb53eaedc4f2bc36797..f0af4082f6b7f5e76df0b6f2ea1da6427e43a834 100644
--- a/chrome/test/BUILD.gn
+++ b/chrome/test/BUILD.gn
@@ -1669,6 +1669,12 @@ if (!is_android) {
                       "//chrome")
       deps += [ "//ui/app_list:test_support" ]
     }
+    if (enable_app_list && is_chromeos) {
+      sources += rebase_path(
+              unit_gypi_values.chrome_unit_tests_app_list_chromeos_sources,
+              ".",
+              "//chrome")
+    }
     if (!enable_plugin_installation) {
       sources -= [ "../browser/plugins/plugin_installer_unittest.cc" ]
     }