15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef CHROME_BROWSER_UI_UMA_BROWSING_ACTIVITY_OBSERVER_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define CHROME_BROWSER_UI_UMA_BROWSING_ACTIVITY_OBSERVER_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/notification_registrar.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/notification_observer.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace chrome { 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This object is instantiated when the first Browser object is added to the 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// list and delete when the last one is removed. It watches for loads and 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// creates histograms of some global object counts. 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class UMABrowsingActivityObserver : public content::NotificationObserver { 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static void Init(); 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMABrowsingActivityObserver(); 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~UMABrowsingActivityObserver(); 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // content::NotificationObserver implementation. 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void Observe(int type, 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const content::NotificationSource& source, 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const content::NotificationDetails& details) OVERRIDE; 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Counts the number of active RenderProcessHosts and logs them. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void LogRenderProcessHostCount() const; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Counts the number of tabs in each browser window and logs them. This is 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // different than the number of WebContents objects since WebContents objects 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // can be used for popups and in dialog boxes. We're just counting toplevel 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // tabs here. 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void LogBrowserTabCount() const; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) content::NotificationRegistrar registrar_; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(UMABrowsingActivityObserver); 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace chrome 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // CHROME_BROWSER_UI_UMA_BROWSING_ACTIVITY_OBSERVER_H_ 46