Non-plafrom-specific part of an OwnerSettingsService is moved to components/ownership/*.

components/ownership/owner_settings_service.cc

+// 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.
+
+#include "components/ownership/owner_settings_service.h"
+
+#include "base/basictypes.h"
+#include "base/bind.h"
+#include "base/callback.h"
+#include "base/location.h"
+#include "base/logging.h"
+#include "base/message_loop/message_loop.h"
+#include "base/task_runner.h"
+#include "base/task_runner_util.h"
+#include "components/ownership/owner_key_util.h"
+#include "crypto/signature_creator.h"
+
+namespace em = enterprise_management;
+
+namespace ownership {
+
+namespace {
+
+std::string AssembleAndSignPolicy(scoped_ptr<em::PolicyData> policy,
+                                  crypto::RSAPrivateKey* private_key) {
+  // Assemble the policy.
+  em::PolicyFetchResponse policy_response;
+  if (!policy->SerializeToString(policy_response.mutable_policy_data())) {
+    LOG(ERROR) << "Failed to encode policy payload.";
+    return std::string();
+  }
+
+  // Generate the signature.
+  scoped_ptr<crypto::SignatureCreator> signature_creator(
+      crypto::SignatureCreator::Create(private_key));
+  signature_creator->Update(
+      reinterpret_cast<const uint8*>(policy_response.policy_data().c_str()),
+      policy_response.policy_data().size());
+  std::vector<uint8> signature_bytes;
+  std::string policy_blob;
+  if (!signature_creator->Final(&signature_bytes)) {
+    LOG(ERROR) << "Failed to create policy signature.";
+    return std::string();
+  }
+
+  policy_response.mutable_policy_data_signature()->assign(
+      reinterpret_cast<const char*>(vector_as_array(&signature_bytes)),
+      signature_bytes.size());
+  return policy_response.SerializeAsString();
+}
+
+}  // namepace
+
+OwnerSettingsService::OwnerSettingsService(
+    const scoped_refptr<ownership::OwnerKeyUtil>& owner_key_util)
+    : owner_key_util_(owner_key_util), weak_factory_(this) {
+}
+
+OwnerSettingsService::~OwnerSettingsService() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+}
+
+bool OwnerSettingsService::IsOwner() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  return private_key_ && private_key_->key();
+}
+
+void OwnerSettingsService::IsOwnerAsync(const IsOwnerCallback& callback) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  if (private_key_) {
+    base::MessageLoop::current()->PostTask(FROM_HERE,
+                                           base::Bind(callback, IsOwner()));
+  } else {
+    pending_is_owner_callbacks_.push_back(callback);
+  }
+}
+
+bool OwnerSettingsService::AssembleAndSignPolicyAsync(
+    base::TaskRunner* task_runner,
+    scoped_ptr<em::PolicyData> policy,
+    const AssembleAndSignPolicyAsyncCallback& callback) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  if (!task_runner || !IsOwner())
+    return false;
+  return base::PostTaskAndReplyWithResult(
+      task_runner,
+      FROM_HERE,
+      base::Bind(
+          &AssembleAndSignPolicy, base::Passed(&policy), private_key_->key()),
+      callback);
+}
+
+void OwnerSettingsService::ReloadKeypair() {
+  ReloadKeypairImpl(
+      base::Bind(&OwnerSettingsService::OnKeypairLoaded, as_weak_ptr()));
+}
+
+void OwnerSettingsService::OnKeypairLoaded(
+    const scoped_refptr<PublicKey>& public_key,
+    const scoped_refptr<PrivateKey>& private_key) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+
+  public_key_ = public_key;
+  private_key_ = private_key;
+
+  const bool is_owner = IsOwner();
+  std::vector<IsOwnerCallback> is_owner_callbacks;
+  is_owner_callbacks.swap(pending_is_owner_callbacks_);
+  for (std::vector<IsOwnerCallback>::iterator it(is_owner_callbacks.begin());
+       it != is_owner_callbacks.end();
+       ++it) {
+    it->Run(is_owner);
+  }
+
+  OnPostKeypairLoadedActions();
+}
+
+}  // namespace ownership