Add lots of GN targets

components/autofill/content/common/BUILD.gn

Index: components/autofill/content/common/BUILD.gn
diff --git a/components/autofill/content/common/BUILD.gn b/components/autofill/content/common/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..733dfa7f7e6367fe5d3cbd2a2f6a719e220fbea4
--- /dev/null
+++ b/components/autofill/content/common/BUILD.gn
@@ -0,0 +1,23 @@
+# Copyright 2014 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.
+
+# GYP version: components:autofill.gypi:autofill_content_common
+static_library("common") {
+  sources = [
+    "autofill_message_generator.cc",
+    "autofill_message_generator.h",
+    "autofill_messages.h",
+    "autofill_param_traits_macros.h",
+  ]
+
+  deps = [
+    "//base",
+    "//components/autofill/core/common",
+    "//content/public/common",
+    "//ipc",
+    "//third_party/WebKit/public:blink_minimal",
+    "//ui/gfx",
+    "//ui/gfx/ipc",
+  ]
+}