Some linking fixes for GN build.

tools/xdisplaycheck/BUILD.gn

Index: tools/xdisplaycheck/BUILD.gn
diff --git a/components/infobars/test/BUILD.gn b/tools/xdisplaycheck/BUILD.gn
similarity index 65%
copy from components/infobars/test/BUILD.gn
copy to tools/xdisplaycheck/BUILD.gn
index 606cecd8fbb778ef85a9423d5377e417466157a3..4a3ad3c5aba5ce9d30058ea87200aef4b9846c0f 100644
--- a/components/infobars/test/BUILD.gn
+++ b/tools/xdisplaycheck/BUILD.gn
@@ -2,13 +2,12 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-static_library("test_support") {
+executable("xdisplaycheck") {
   sources = [
-    "infobar_test.cc",
+    "xdisplaycheck.cc",
   ]
 
-  deps = [
-    "//base",
-    "//skia",
+  configs += [
+    "//build/config/linux:x11"
   ]
 }