Move chromeos code to namespace chromeos.

chrome/browser/chromeos/chromeos_version_loader.cc

-// Copyright (c) 2009 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/chromeos/chromeos_version_loader.h"
-
-#include "base/file_path.h"
-#include "base/file_util.h"
-#include "base/message_loop.h"
-#include "base/string_util.h"
-#include "base/thread.h"
-#include "chrome/browser/browser_process.h"
-
-// Beginning of line we look for that gives version number.
-static const char kPrefix[] = "CHROMEOS_RELEASE_DESCRIPTION=";
-
-// File to look for version number in.
-static const char kPath[] = "/etc/lsb-release";
-
-ChromeOSVersionLoader::ChromeOSVersionLoader() : backend_(new Backend()) {
-}
-
-ChromeOSVersionLoader::Handle ChromeOSVersionLoader::GetVersion(
-    CancelableRequestConsumerBase* consumer,
-    ChromeOSVersionLoader::GetVersionCallback* callback) {
-  if (!g_browser_process->file_thread()) {
-    // This should only happen if Chrome is shutting down, so we don't do
-    // anything.
-    return 0;
-  }
-
-  scoped_refptr<CancelableRequest<GetVersionCallback> > request(
-      new CancelableRequest<GetVersionCallback>(callback));
-  AddRequest(request, consumer);
-
-  g_browser_process->file_thread()->message_loop()->PostTask(
-      FROM_HERE,
-      NewRunnableMethod(backend_.get(), &Backend::GetVersion, request));
-  return request->handle();
-}
-
-// static
-std::string ChromeOSVersionLoader::ParseVersion(const std::string& contents) {
-  // The file contains lines such as:
-  // XXX=YYY
-  // AAA=ZZZ
-  // Split the lines and look for the one that starts with kPrefix. The version
-  // file is small, which is why we don't try and be tricky.
-  std::vector<std::string> lines;
-  SplitString(contents, '\n', &lines);
-  for (size_t i = 0; i < lines.size(); ++i) {
-    if (StartsWithASCII(lines[i], kPrefix, false)) {
-      std::string version = lines[i].substr(std::string(kPrefix).size());
-      if (version.size() > 1 && version[0] == '"' &&
-          version[version.size() - 1] == '"') {
-        // Trim trailing and leading quotes.
-        version = version.substr(1, version.size() - 2);
-      }
-      return version;
-    }
-  }
-  return std::string();
-}
-
-void ChromeOSVersionLoader::Backend::GetVersion(
-    scoped_refptr<GetVersionRequest> request) {
-  if (request->canceled())
-    return;
-
-  std::string version;
-  std::string contents;
-  if (file_util::ReadFileToString(FilePath(kPath), &contents))
-    version = ParseVersion(contents);
-  request->ForwardResult(GetVersionCallback::TupleType(request->handle(),
-                                                       version));
-}