Moved chrome/common/policy to components/policy.

components/policy.gypi

+# 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': 'policy_component',
+      'type': '<(component)',
+      'dependencies': [
+        '../base/base.gyp:base',
+        'json_schema',
+      ],
+      'defines': [
+        'POLICY_COMPONENT_IMPLEMENTATION',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      # The target 'policy_component' always exists. For now it may be empty,
+      # but later it will include some stubs when configuration_policy==0.

[Mattias Nissler (ping if slow), 2013/08/13 12:32:09]

This comment may bitrot. So remove it or, if you want to keep it, please turn it
into a TODO with proper bug reference.

[Joao da Silva, 2013/08/13 12:50:18]

Done.

+      'conditions': [
+        ['configuration_policy==1', {
+          'sources': [
+            'policy/core/common/policy_schema.cc',

[Jói, 2013/08/13 12:26:43]

Maybe list policy_export.h for completeness.

[Mattias Nissler (ping if slow), 2013/08/13 12:32:09]

What's the plan with this 'core' directory? Can you give me background on the
high-level plan where files end up (and ideally document that on the bug)?

[Joao da Silva, 2013/08/13 12:50:18]

Good catch, that was a lapse from my side. Done.

[Joao da Silva, 2013/08/13 12:50:18]

http://dev.chromium.org/developers/design-documents/structure-of-layered-comp...

I'm following the structure of the autofill component (see link below, slightly
out-of-date re structure). The core/ directory is further split into browser/
(not done in this CL yet) and common/, so that chrome/common/DEPS can whitelist
common/ only.

There's a lot more on the wiki:

http://dev.chromium.org/developers/design-documents/layered-components-techni...

http://dev.chromium.org/developers/design-documents/browser-components/cookbo...

http://dev.chromium.org/developers/design-documents/layered-components-design

http://dev.chromium.org/developers/design-documents/layered-components-techni...

[Mattias Nissler (ping if slow), 2013/08/13 13:14:38]

I see. Note that these references suggest you come up with a "design" :) I'll
not force you to write a doc now, but it'd be nice if you could at least dump a
rough plan of what moves where on the bug, in particular considering that you're
on vacation after tomorrow.

+            'policy/core/common/policy_schema.h',
+          ],
+        } ],

[Mattias Nissler (ping if slow), 2013/08/13 12:32:09]

nit }], seems to be more common in gyp files

[Joao da Silva, 2013/08/13 12:50:18]

Done.

+      ],
+    },
+  ],
+}