Move prefs-related files under chrome/browser/ into a prefs/ subdir.

Rename includes, resort header include order in places where the rename
changed the order.

BUG=50548
TEST=compiles

Review URL: http://codereview.chromium.org/3203008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57434 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 68 insertions, 0 deletions

diff --git a/chrome/browser/policy/managed_prefs_banner_base.h b/chrome/browser/policy/managed_prefs_banner_base.h
new file mode 100644
index 0000000..eb5bf90
--- /dev/null
+++ b/chrome/browser/policy/managed_prefs_banner_base.h
@@ -0,0 +1,68 @@
+// Copyright (c) 2010 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_MANAGED_PREFS_BANNER_BASE_H_
+#define CHROME_BROWSER_POLICY_MANAGED_PREFS_BANNER_BASE_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "base/scoped_ptr.h"
+#include "chrome/browser/options_window.h"
+#include "chrome/browser/prefs/pref_set_observer.h"
+#include "chrome/common/notification_observer.h"
+
+class PrefService;
+
+// Common base functionality for the managed prefs warning banner displayed in
+// the preference dialogs when there are options that are controlled by
+// configuration policy and thus cannot be changed by the user.
+class ManagedPrefsBannerBase : public NotificationObserver {
+ public:
+  // Initialize the banner with a set of preferences suitable for the given
+  // options |page|. Subclasses may change that set by calling AddPref() and
+  // RemovePref() afterwards.
+  ManagedPrefsBannerBase(PrefService* local_state,
+                         PrefService* user_prefs,
+                         OptionsPage page);
+
+  // Convenience constructor that fetches the local state PrefService from the
+  // global g_browser_process.
+  ManagedPrefsBannerBase(PrefService* user_prefs, OptionsPage page);
+
+  // Determine whether the banner should be visible.
+  bool DetermineVisibility() const;
+
+  // Add a local state preference as visibility trigger.
+  void AddLocalStatePref(const char* pref);
+  // Remove a local state preference from being a visibility trigger.
+  void RemoveLocalStatePref(const char* pref);
+
+  // Add a user preference as visibility trigger.
+  void AddUserPref(const char* pref);
+  // Remove a user preference from being a visibility trigger.
+  void RemoveUserPref(const char* pref);
+
+ protected:
+  // Update banner visibility. This is called whenever a preference change is
+  // observed that may lead to changed visibility of the banner. Subclasses may
+  // override this in order to show/hide the banner.
+  virtual void OnUpdateVisibility() { }
+
+ private:
+  // Initialization helper, called from the constructors.
+  void Init(PrefService* local_state,
+            PrefService* user_prefs,
+            OptionsPage page);
+
+  // |NotificationObserver| implementation.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
+  scoped_ptr<PrefSetObserver> local_state_set_;
+  scoped_ptr<PrefSetObserver> user_pref_set_;
+
+  DISALLOW_COPY_AND_ASSIGN(ManagedPrefsBannerBase);
+};
+#endif  // CHROME_BROWSER_POLICY_MANAGED_PREFS_BANNER_BASE_H_