diff --git a/ipc/chromium/src/chrome/common/notification_details.h b/ipc/chromium/src/chrome/common/notification_details.h
deleted file mode 100644
index 39223d207a5d..000000000000
--- a/ipc/chromium/src/chrome/common/notification_details.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-// Copyright (c) 2006-2008 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.
-
-// This file defines the type used to provide details for NotificationService
-// notifications.
-
-#ifndef CHROME_COMMON_NOTIFICATION_DETAILS_H__
-#define CHROME_COMMON_NOTIFICATION_DETAILS_H__
-
-#include "base/basictypes.h"
-
-// Do not declare a NotificationDetails directly--use either
-// "Details<detailsclassname>(detailsclasspointer)" or
-// NotificationService::NoDetails().
-class NotificationDetails {
- public:
-  NotificationDetails() : ptr_(NULL) {}
-  NotificationDetails(const NotificationDetails& other) : ptr_(other.ptr_) {}
-  ~NotificationDetails() {}
-
-  // NotificationDetails can be used as the index for a map; this method
-  // returns the pointer to the current details as an identifier, for use as a
-  // map index.
-  uintptr_t map_key() const { return reinterpret_cast<uintptr_t>(ptr_); }
-
-  bool operator!=(const NotificationDetails& other) const {
-    return ptr_ != other.ptr_;
-  }
-
-  bool operator==(const NotificationDetails& other) const {
-    return ptr_ == other.ptr_;
-  }
-
- protected:
-  explicit NotificationDetails(void* ptr) : ptr_(ptr) {}
-
-  void* ptr_;
-};
-
-template <class T>
-class Details : public NotificationDetails {
- public:
-  explicit Details(T* ptr) : NotificationDetails(ptr) {}
-  explicit Details(const NotificationDetails& other)
-    : NotificationDetails(other) {}
-
-  T* operator->() const { return ptr(); }
-  T* ptr() const { return static_cast<T*>(ptr_); }
-};
-
-#endif  // CHROME_COMMON_NOTIFICATION_DETAILS_H__
diff --git a/ipc/chromium/src/chrome/common/notification_observer.h b/ipc/chromium/src/chrome/common/notification_observer.h
deleted file mode 100644
index c0d267d5a4c0..000000000000
--- a/ipc/chromium/src/chrome/common/notification_observer.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-// 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.
-
-#ifndef CHROME_COMMON_NOTIFICATION_OBSERVER_H_
-#define CHROME_COMMON_NOTIFICATION_OBSERVER_H_
-
-class NotificationDetails;
-class NotificationSource;
-class NotificationType;
-
-// This is the base class for notification observers. When a matching
-// notification is posted to the notification service, Observe is called.
-class NotificationObserver {
- public:
-  virtual ~NotificationObserver();
-
-  virtual void Observe(NotificationType type,
-                       const NotificationSource& source,
-                       const NotificationDetails& details) = 0;
-};
-
-#endif  // CHROME_COMMON_NOTIFICATION_OBSERVER_H_
diff --git a/ipc/chromium/src/chrome/common/notification_registrar.h b/ipc/chromium/src/chrome/common/notification_registrar.h
deleted file mode 100644
index bb9199b14fde..000000000000
--- a/ipc/chromium/src/chrome/common/notification_registrar.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-// Copyright (c) 2006-2008 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_COMMON_NOTIFICATION_REGISTRAR_H_
-#define CHROME_COMMON_NOTIFICATION_REGISTRAR_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "chrome/common/notification_observer.h"
-
-// Aids in registering for notifications and ensures that all registered
-// notifications are unregistered when the class is destroyed.
-//
-// The intended use is that you make a NotificationRegistrar member in your
-// class and use it to register your notifications instead of going through the
-// notification service directly. It will automatically unregister them for
-// you.
-class NotificationRegistrar {
- public:
-  // This class must not be derived from (we don't have a virtual destructor so
-  // it won't work). Instead, use it as a member in your class.
-  NotificationRegistrar();
-  ~NotificationRegistrar();
-
-  // Wrappers around NotificationService::[Add|Remove]Observer.
-  void Add(NotificationObserver* observer,
-           NotificationType type,
-           const NotificationSource& source);
-  void Remove(NotificationObserver* observer,
-              NotificationType type,
-              const NotificationSource& source);
-
-  // Unregisters all notifications.
-  void RemoveAll();
-
- private:
-  struct Record;
-
-  // We keep registered notifications in a simple vector. This means we'll do
-  // brute-force searches when removing them individually, but individual
-  // removal is uncommon, and there will typically only be a couple of
-  // notifications anyway.
-  typedef std::vector<Record> RecordVector;
-
-  // Lists all notifications we're currently registered for.
-  RecordVector registered_;
-
-  DISALLOW_COPY_AND_ASSIGN(NotificationRegistrar);
-};
-
-#endif  // CHROME_COMMON_NOTIFICATION_REGISTRAR_H_
diff --git a/ipc/chromium/src/chrome/common/notification_source.h b/ipc/chromium/src/chrome/common/notification_source.h
deleted file mode 100644
index 5c62fee9fa72..000000000000
--- a/ipc/chromium/src/chrome/common/notification_source.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-// Copyright (c) 2006-2008 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.
-
-// This file defines the type used to provide sources for NotificationService
-// notifications.
-
-#ifndef CHROME_COMMON_NOTIFICATION_SOURCE_H__
-#define CHROME_COMMON_NOTIFICATION_SOURCE_H__
-
-#include "base/basictypes.h"
-
-// Do not declare a NotificationSource directly--use either
-// "Source<sourceclassname>(sourceclasspointer)" or
-// NotificationService::AllSources().
-class NotificationSource {
- public:
-  NotificationSource(const NotificationSource& other) : ptr_(other.ptr_) { }
-  ~NotificationSource() {}
-
-  // NotificationSource can be used as the index for a map; this method
-  // returns the pointer to the current source as an identifier, for use as a
-  // map index.
-  uintptr_t map_key() const { return reinterpret_cast<uintptr_t>(ptr_); }
-
-  bool operator!=(const NotificationSource& other) const {
-    return ptr_ != other.ptr_;
-  }
-  bool operator==(const NotificationSource& other) const {
-    return ptr_ == other.ptr_;
-  }
-
- protected:
-  explicit NotificationSource(void* ptr) : ptr_(ptr) {}
-
-  void* ptr_;
-};
-
-template <class T>
-class Source : public NotificationSource {
- public:
-  explicit Source(T* ptr) : NotificationSource(ptr) {}
-
-  explicit Source(const NotificationSource& other)
-    : NotificationSource(other) {}
-
-  T* operator->() const { return ptr(); }
-  T* ptr() const { return static_cast<T*>(ptr_); }
-};
-
-#endif  // CHROME_COMMON_NOTIFICATION_SOURCE_H__