Add a platform policy provider for Android.

components/policy/core/common/policy_provider_android_delegate.h

+// 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.
+
+#ifndef COMPONENTS_POLICY_CORE_COMMON_POLICY_PROVIDER_ANDROID_DELEGATE_H_
+#define COMPONENTS_POLICY_CORE_COMMON_POLICY_PROVIDER_ANDROID_DELEGATE_H_
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/memory/weak_ptr.h"

[Joao da Silva, 2014/02/05 20:22:26]

not used

[Bernhard Bauer, 2014/02/06 15:00:18]

Removed.

+#include "components/policy/core/common/configuration_policy_provider.h"
+#include "components/policy/core/common/policy_service.h"

[Joao da Silva, 2014/02/05 20:22:26]

not used

[Bernhard Bauer, 2014/02/06 15:00:18]

Removed.

+
+namespace policy {
+
+// A delegate for the Android policy provider. This class is responsible for
+// setting policies on the PolicyProviderAndroid and refreshing them on demand.
+class POLICY_EXPORT PolicyProviderAndroidDelegate {

[Joao da Silva, 2014/02/05 20:22:26]

We usually have Observers and Delegates like this declared inside the main
class. Can you move this to PolicyProviderAndroid::Delegate?

And a suggestion (but I don't know how the delegate looks like internally, so
feel free to bypass the suggestion):

Could PolicyProviderAndroid own the delegate, and also get it passed in the
ctor?

[Bernhard Bauer, 2014/02/05 22:20:19]

Hm, currently the lifetime of the delegate is coupled to the Java classes, i.e.
it is constructed and destructed from Java. OTOH, we could probably construct it
beforehand, and then just get a reference to it for access from Java... I'll
look into it tomorrow.

+ public:
+  // Called to refresh policies.
+  virtual void RefreshPolicies() = 0;
+
+  // Called before the provider is destroyed.
+  virtual void PolicyProviderShutdown() = 0;
+
+ protected:
+  virtual ~PolicyProviderAndroidDelegate() {}
+};
+
+}  // namespace policy
+
+#endif  // COMPONENTS_POLICY_CORE_COMMON_POLICY_PROVIDER_ANDROID_DELEGATE_H_