Add an outdated upgrade bubble view.

chrome/browser/upgrade_detector_impl.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_UPGRADE_DETECTOR_IMPL_H_
 #define CHROME_BROWSER_UPGRADE_DETECTOR_IMPL_H_
 
 #include "base/memory/weak_ptr.h"
+#include "base/time.h"
 #include "base/timer.h"
 #include "chrome/browser/upgrade_detector.h"
+#include "net/url_request/url_fetcher_delegate.h"
 
 template <typename T> struct DefaultSingletonTraits;
 
-class UpgradeDetectorImpl : public UpgradeDetector {
+class UpgradeDetectorImpl : public UpgradeDetector,
+                            public net::URLFetcherDelegate {
  public:
   virtual ~UpgradeDetectorImpl();
 
   // Returns the singleton instance.
   static UpgradeDetectorImpl* GetInstance();
 
  private:
   friend struct DefaultSingletonTraits<UpgradeDetectorImpl>;
 
   UpgradeDetectorImpl();
 
   // Launches a task on the file thread to check if we have the latest version.
   void CheckForUpgrade();
 
   // Sends out a notification and starts a one shot timer to wait until
   // notifying the user.
   void UpgradeDetected();
 
+  // Sends a URL request to get a sane time to be compared to the build time.
+  void CompareBuildTimeToSaneTime();
+
   // The function that sends out a notification (after a certain time has
   // elapsed) that lets the rest of the UI know we should start notifying the
   // user that a new version is available.
   void NotifyOnUpgrade();
 
+  // net::URLFetcherDelegate implementation:
+  virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
+
+  // Contains the current time request. Will only have a value while a request
+  // is pending, and will be reset by |OnURLFetchComplete|.
+  scoped_ptr<net::URLFetcher> pending_time_request_;
+
   // We periodically check to see if Chrome has been upgraded.
   base::RepeatingTimer<UpgradeDetectorImpl> detect_upgrade_timer_;
 
   // After we detect an upgrade we start a recurring timer to see if enough time
   // has passed and we should start notifying the user.
   base::RepeatingTimer<UpgradeDetectorImpl> upgrade_notification_timer_;
 
   // We use this factory to create callback tasks for UpgradeDetected. We pass
   // the task to the actual upgrade detection code, which is in
   // DetectUpgradeTask.
   base::WeakPtrFactory<UpgradeDetectorImpl> weak_factory_;
 
   // True if this build is a dev or canary channel build.
   bool is_unstable_channel_;
 
+  // The date the binaries were built.
+  base::Time build_date_;
+
   DISALLOW_COPY_AND_ASSIGN(UpgradeDetectorImpl);
 };
 
 
 #endif  // CHROME_BROWSER_UPGRADE_DETECTOR_IMPL_H_