Split up chrome/browser/policy subdirectory

chrome/browser/policy/user_policy_token_loader.cc

-// Copyright (c) 2011 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 "chrome/browser/policy/user_policy_token_loader.h"
-
-#include "base/bind.h"
-#include "base/file_util.h"
-#include "base/metrics/histogram.h"
-#include "chrome/browser/policy/enterprise_metrics.h"
-#include "chrome/browser/policy/proto/device_management_local.pb.h"
-#include "content/public/browser/browser_thread.h"
-
-using content::BrowserThread;
-
-namespace {
-
-// Other places can sample on the same UMA counter, so make sure they all do
-// it on the same thread (UI).
-void SampleUMAOnUIThread(policy::MetricToken sample) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  UMA_HISTOGRAM_ENUMERATION(policy::kMetricToken, sample,
-                            policy::kMetricTokenSize);
-}
-
-void SampleUMA(policy::MetricToken sample) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
-                          base::Bind(&SampleUMAOnUIThread, sample));
-}
-
-}  // namespace
-
-namespace policy {
-
-namespace em = enterprise_management;
-
-UserPolicyTokenLoader::Delegate::~Delegate() {}
-
-UserPolicyTokenLoader::UserPolicyTokenLoader(
-    const base::WeakPtr<Delegate>& delegate,
-    const base::FilePath& cache_file)
-    : delegate_(delegate),
-      cache_file_(cache_file) {}
-
-void UserPolicyTokenLoader::Load() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  BrowserThread::PostTask(
-      BrowserThread::FILE, FROM_HERE,
-      base::Bind(&UserPolicyTokenLoader::LoadOnFileThread, this));
-}
-
-UserPolicyTokenLoader::~UserPolicyTokenLoader() {
-}
-
-void UserPolicyTokenLoader::LoadOnFileThread() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  std::string device_token;
-  std::string device_id;
-
-  if (file_util::PathExists(cache_file_)) {
-    std::string data;
-    em::DeviceCredentials device_credentials;
-    if (file_util::ReadFileToString(cache_file_, &data) &&
-        device_credentials.ParseFromArray(data.c_str(), data.size())) {
-      device_token = device_credentials.device_token();
-      device_id = device_credentials.device_id();
-      SampleUMA(kMetricTokenLoadSucceeded);
-    } else {
-      SampleUMA(kMetricTokenLoadFailed);
-    }
-  }
-
-  BrowserThread::PostTask(
-      BrowserThread::UI, FROM_HERE,
-      base::Bind(&UserPolicyTokenLoader::NotifyOnUIThread,
-                 this,
-                 device_token,
-                 device_id));
-}
-
-void UserPolicyTokenLoader::NotifyOnUIThread(const std::string& token,
-                                             const std::string& device_id) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  if (delegate_.get())
-    delegate_->OnTokenLoaded(token, device_id);
-}
-
-}  // namespace policy