Add remoting and PPAPI tests to GN build

remoting/host/setup/BUILD.gn

+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//remoting/remoting_srcs.gni")
+
+source_set("setup") {
+  sources =
+      rebase_path(remoting_host_srcs_gypi_values.remoting_host_setup_sources,
+                  ".",
+                  "//remoting")
+
+  configs += [
+    # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
+    "//build/config/compiler:no_size_t_to_int_warning",
+    "//build/config/compiler:wexit_time_destructors",
+    "//remoting:version",
+  ]
+
+  deps = [
+    "//base",
+    "//google_apis",
+    "//remoting/host",
+  ]
+
+  if (is_win) {
+    deps += [
+      "//google_update",
+      "//remoting/host:remoting_lib_idl",
+    ]
+  }
+}