Remove listening of OMNIBOX_OPENED_URL from metrics code

chrome/browser/metrics/thread_watcher.h

 // Copyright (c) 2012 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 a WatchDog thread that monitors the responsiveness of other
 // browser threads like UI, IO, DB, FILE and CACHED threads. It also defines
 // ThreadWatcher class which performs health check on threads that would like to
 // be watched. This file also defines ThreadWatcherList class that has list of
 // all active ThreadWatcher objects.
 //
@@ skipping 41 matching lines @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/platform_thread.h"
 #include "base/threading/thread.h"
 #include "base/threading/watchdog.h"
 #include "base/time/time.h"
+#include "components/omnibox/browser/omnibox_event_global_tracker.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class CustomThreadWatcher;
 class StartupTimeBomb;
 class ThreadWatcherList;
 class ThreadWatcherObserver;
 
 // This class performs health check on threads that would like to be watched.
@@ skipping 453 matching lines @@
 
   // This ensures all thread watchers are active because there is some user
   // activity. It will wake up all thread watchers every |wakeup_interval_|
   // seconds. This is the implementation of content::NotificationObserver. When
   // a matching notification is posted to the notification service, this method
   // is called.
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
+  // Called when a URL is opened from the Omnibox.
+  void OnURLOpenedFromOmnibox(OmniboxLog* log);
+
+  // Called when user activity is detected.
+  void OnUserActivityDetected();
+
   // The singleton of this class.
   static ThreadWatcherObserver* g_thread_watcher_observer_;
 
   // The registrar that holds ints to be observed.
   content::NotificationRegistrar registrar_;
 
   // This is the last time when woke all thread watchers up.
   base::TimeTicks last_wakeup_time_;
 
   // It is the time interval between wake up calls to thread watchers.
   const base::TimeDelta wakeup_interval_;
 
+  // Subscription for receiving callbacks that a URL was opened from the
+  // omnibox.
+  scoped_ptr<base::CallbackList<void(OmniboxLog*)>::Subscription>
+      omnibox_url_opened_subscription_;
+
   DISALLOW_COPY_AND_ASSIGN(ThreadWatcherObserver);
 };
 
 // Class for WatchDogThread and in its Init method, we start watching UI, IO,
 // DB, FILE, CACHED threads.
 class WatchDogThread : public base::Thread {
  public:
   // Constructor.
   WatchDogThread();
 
@@ skipping 85 matching lines @@
   // shutdown_watchdog_ watches for hangs during shutdown.
   base::Watchdog* shutdown_watchdog_;
 
   // The |thread_id_| on which this object is constructed.
   const base::PlatformThreadId thread_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ShutdownWatcherHelper);
 };
 
 #endif  // CHROME_BROWSER_METRICS_THREAD_WATCHER_H_