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

chrome/browser/storage_monitor/udev_util_linux.h

Index: chrome/browser/storage_monitor/udev_util_linux.h
diff --git a/chrome/browser/storage_monitor/udev_util_linux.h b/chrome/browser/storage_monitor/udev_util_linux.h
index 308af967ff03963a689295334e31f7bb2a610bee..31497560ed4774d8797976c3191c828daa438f1d 100644
--- a/chrome/browser/storage_monitor/udev_util_linux.h
+++ b/chrome/browser/storage_monitor/udev_util_linux.h
@@ -15,8 +15,6 @@ namespace base {
 class FilePath;
 }
 
-namespace chrome {
-
 // Deleter for ScopedUdevObject.
 struct UdevDeleter {
   void operator()(struct udev* udev);
@@ -41,6 +39,4 @@ bool GetUdevDevicePropertyValueByPath(const base::FilePath& device_path,
                                       const char* key,
                                       std::string* result);
 
-}  // namespace chrome
-
 #endif  // CHROME_BROWSER_STORAGE_MONITOR_UDEV_UTIL_LINUX_H_