GN: Some small changes to support chrome android internal stuff

chrome/test/BUILD.gn

Index: chrome/test/BUILD.gn
diff --git a/chrome/test/BUILD.gn b/chrome/test/BUILD.gn
index ef179040f9a12c5aff7fcfa914e3a575464c13e0..f7145ad29c295beb3f992f6ddc063723d172ff98 100644
--- a/chrome/test/BUILD.gn
+++ b/chrome/test/BUILD.gn
@@ -109,7 +109,6 @@ source_set("test_support") {
 
   if (!is_ios) {
     deps += [
-      "//chrome/common/extensions/api",
       "//chrome/plugin",
       "//chrome/renderer",
       "//chrome/utility",
@@ -122,7 +121,6 @@ source_set("test_support") {
       "//components/captive_portal:test_support",
       "//components/infobars/core",
       "//components/sessions:test_support",
-      "//extensions:test_support",
       "//google_apis:test_support",
       "//ipc:test_support",
       "//media:test_support",
@@ -135,6 +133,13 @@ source_set("test_support") {
     ]
   }
 
+  if (enable_extensions) {
+    deps += [
+      "//chrome/common/extensions/api",
+      "//extensions:test_support",
+    ]
+  }
+
   if (is_linux) {
     deps += [ "//crypto:platform" ]
   }