Cleanup: Remove chrome namespace for storage monitor and media galleries.

chrome/browser/storage_monitor/udev_util_linux.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 "chrome/browser/storage_monitor/udev_util_linux.h"
 
 #include "base/files/file_path.h"
 
-namespace chrome {
-
 void UdevDeleter::operator()(struct udev* udev) {
   udev_unref(udev);
 }
 
 void UdevDeviceDeleter::operator()(struct udev_device* device) {
   udev_device_unref(device);
 }
 
 std::string GetUdevDevicePropertyValue(struct udev_device* udev_device,
                                        const char* key) {
   const char* value = udev_device_get_property_value(udev_device, key);
   return value ? value : std::string();
 }
 
 bool GetUdevDevicePropertyValueByPath(const base::FilePath& device_path,
                                       const char* key,
                                       std::string* result) {
   ScopedUdevObject udev(udev_new());
   if (!udev.get())
     return false;
   ScopedUdevDeviceObject device(udev_device_new_from_syspath(
       udev.get(), device_path.value().c_str()));
   if (!device.get())
     return false;
   *result = GetUdevDevicePropertyValue(device.get(), key);
   return true;
 }
-
-}  // namespace chrome