[rlz,cros] RLZ glue for ChromeOS.

chrome/browser/google/google_util_chromeos.cc

+// Copyright (c) 2012 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 "base/basictypes.h"
+#include "base/bind.h"
+#include "base/file_path.h"
+#include "base/file_util.h"
+#include "base/logging.h"
+#include "base/string_util.h"
+#include "base/task_runner_util.h"
+#include "base/threading/worker_pool.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/common/pref_names.h"
+#include "content/public/browser/browser_thread.h"
+
+namespace google_util {
+namespace chromeos {
+
+namespace {
+
+// Path to file that stores the RLZ brand code on ChromeOS.
+const char kRLZBrandFilePath[] =
+    FILE_PATH_LITERAL("/opt/oem/etc/BRAND_CODE");
+
+// Reads the brand code from file |kRLZBrandFilePath|.
+std::string ReadBrandFromFile() {
+  std::string brand;
+  FilePath brand_file_path(kRLZBrandFilePath);
+  if (!file_util::ReadFileToString(brand_file_path, &brand))
+    LOG(WARNING) << "Brand code file missing: " << brand_file_path.value();
+  TrimWhitespace(brand, TRIM_ALL, &brand);
+  return brand;
+}
+
+// Sets the brand code to |brand|.
+void SetBrand(const base::Closure& callback, const std::string& brand) {
+  g_browser_process->local_state()->SetString(prefs::kRLZBrand, brand);
+  callback.Run();
+}
+
+}  // namespace
+
+std::string GetBrand() {
+  DCHECK(
+      !content::BrowserThread::IsWellKnownThread(content::BrowserThread::UI) ||
+      content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK(g_browser_process->local_state());
+  return g_browser_process->local_state()->GetString(prefs::kRLZBrand);
+}
+
+void SetBrandFromFile(const base::Closure& callback) {
+  base::PostTaskAndReplyWithResult(
+      base::WorkerPool::GetTaskRunner(false /* task_is_slow */),
+      FROM_HERE,
+      base::Bind(&ReadBrandFromFile),
+      base::Bind(&SetBrand, callback));
+}
+
+}  // namespace chromeos
+}  // namespace google_util