Cosmetic cleanups in chrome/browser/policy/

chrome/browser/policy/file_based_policy_loader.h

 // 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.
 
 #ifndef CHROME_BROWSER_POLICY_FILE_BASED_POLICY_LOADER_H_
 #define CHROME_BROWSER_POLICY_FILE_BASED_POLICY_LOADER_H_
 #pragma once
 
-#include "base/files/file_path_watcher.h"
+#include "base/compiler_specific.h"
+#include "base/file_path.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/time.h"
 #include "chrome/browser/policy/asynchronous_policy_loader.h"
 #include "chrome/browser/policy/file_based_policy_provider.h"
 
+namespace base {
+namespace files {
+
+class FilePathWatcher;
+
+}  // namespace files
+}  // namespace base
+
 namespace policy {
 
 // A customized asynchronous policy loader that handles loading policy from a
 // file using a FilePathWatcher. The loader creates a fallback task to load
 // policy periodically in case the watcher fails and retries policy loads when
 // the watched file is in flux.
 class FileBasedPolicyLoader : public AsynchronousPolicyLoader {
  public:
-  FileBasedPolicyLoader(
+  explicit FileBasedPolicyLoader(
       FileBasedPolicyProvider::ProviderDelegate* provider_delegate);
 
   // AsynchronousPolicyLoader overrides:
-  virtual void Reload();
+  virtual void Reload() OVERRIDE;
 
   void OnFilePathChanged(const FilePath& path);
   void OnFilePathError(const FilePath& path);
 
  protected:
   // FileBasedPolicyLoader objects should only be deleted by
   // RefCountedThreadSafe.
   friend class base::RefCountedThreadSafe<AsynchronousPolicyLoader>;
   virtual ~FileBasedPolicyLoader();
 
   const FilePath& config_file_path() { return config_file_path_; }
 
   // AsynchronousPolicyLoader overrides:
 
   // Creates the file path watcher and configures it to watch
   // |config_file_path_|.  Must be called on the file thread.
-  virtual void InitOnFileThread();
-  virtual void StopOnFileThread();
+  virtual void InitOnFileThread() OVERRIDE;
+  virtual void StopOnFileThread() OVERRIDE;
 
  private:
   // Checks whether policy information is safe to read. If not, returns false
   // and then delays until it is considered safe to reload in |delay|.
   // Must be called on the file thread.
   bool IsSafeToReloadPolicy(const base::Time& now, base::TimeDelta* delay);
 
   // The path at which we look for configuration files.
   const FilePath config_file_path_;
 
@@ skipping 15 matching lines @@
   // wall clock times come from the same source, just in case there is some
   // non-local filesystem involved.
   base::Time last_modification_clock_;
 
   DISALLOW_COPY_AND_ASSIGN(FileBasedPolicyLoader);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_FILE_BASED_POLICY_LOADER_H_