Introduce //components/user_prefs, use to eliminate c/b/prefs dependency in Autofill.

components/user_prefs.gypi

Index: components/user_prefs.gypi
diff --git a/components/user_prefs.gypi b/components/user_prefs.gypi
new file mode 100644
index 0000000000000000000000000000000000000000..dc47db0f60534c54ed84d8a1a04b7d4a8c2d16ed
--- /dev/null
+++ b/components/user_prefs.gypi
@@ -0,0 +1,33 @@
+# Copyright (c) 2013 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.
+
+{
+  'targets': [
+    {
+      'target_name': 'user_prefs',
+      'type': '<(component)',
+      'dependencies': [
+        '../base/base.gyp:base',
+        '../base/base.gyp:base_prefs',
+        '../base/base.gyp:base_prefs',

[tfarina, 2013/03/04 16:30:52]

duplicated

[Jói, 2013/03/05 20:54:21]

Done.

+        '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
+        '../content/content.gyp:content_browser',
+        '../ui/ui.gyp:ui',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'defines': [
+        'USER_PREFS_IMPLEMENTATION',
+      ],
+      'sources': [
+        'user_prefs/pref_registry_syncable.cc',
+        'user_prefs/pref_registry_syncable.h',
+        'user_prefs/user_prefs.cc',
+        'user_prefs/user_prefs.h',
+        'user_prefs/user_prefs_export.h',
+      ],
+    },
+  ],
+}