Add UMA metrics and histograms for locally managed users.

chrome/browser/managed_mode/managed_mode.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.
 
 #ifndef CHROME_BROWSER_MANAGED_MODE_MANAGED_MODE_H_
 #define CHROME_BROWSER_MANAGED_MODE_MANAGED_MODE_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
+#include "base/time.h"
 #include "chrome/browser/extensions/management_policy.h"
 #include "chrome/browser/ui/browser_list_observer.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class Browser;
 template<typename T>
 struct DefaultSingletonTraits;
 class ManagedModeSiteList;
 class ManagedModeURLFilter;
 class PrefChangeRegistrar;
 class PrefServiceSimple;
 class PrefServiceSyncable;
 class Profile;
 
-namespace policy{
+namespace policy {
 class URLBlacklist;
 }
 
 // Managed mode allows one person to manage the Chrome experience for another
 // person by pre-configuring and then locking a managed User profile.
 // The ManagedMode class provides methods to check whether the browser is in
 // managed mode, and to attempt to enter or leave managed mode.
 // Except where otherwise noted, this class should be used on the UI thread.
 class ManagedMode : public chrome::BrowserListObserver,
                     public extensions::ManagementPolicy::Provider,
@@ skipping 45 matching lines @@
   // |is_whitelist|) both in URL filter and in preferences.
   static void RemoveFromManualList(const bool is_whitelist,
                                    const base::ListValue& list);
 
   // Updates the whitelist and the blacklist from the prefs.
   static void UpdateManualLists();
 
   // Returns the profile blacklist.
   static scoped_ptr<base::ListValue> GetBlacklist();
 
+  // Returns the URL's category (ID number).
+  static int GetCategory(const GURL& url);
+
   // ExtensionManagementPolicy::Provider implementation:
   virtual std::string GetDebugPolicyProviderName() const OVERRIDE;
   virtual bool UserMayLoad(const extensions::Extension* extension,
                            string16* error) const OVERRIDE;
   virtual bool UserMayModifySettings(const extensions::Extension* extension,
                                      string16* error) const OVERRIDE;
 
   // chrome::BrowserListObserver implementation:
   virtual void OnBrowserAdded(Browser* browser) OVERRIDE;
   virtual void OnBrowserRemoved(Browser* browser) OVERRIDE;
@@ skipping 17 matching lines @@
   friend class Singleton<ManagedMode, LeakySingletonTraits<ManagedMode> >;
   friend struct DefaultSingletonTraits<ManagedMode>;
   FRIEND_TEST_ALL_PREFIXES(ExtensionApiTest, ManagedModeOnChange);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            ManagedModeProhibitsModification);
 
   static ManagedMode* GetInstance();
 
   virtual void InitImpl(Profile* profile);
 
+  // Collect statistics about URLs and categories in the history database.
+  // The |description| will be used in the name of the UMA histogram.
+  void CollectDetailedHistoryMetrics(Profile* profile,
+                                     base::Time start_time,
+                                     std::string description);
+
   // Internal implementation for ExtensionManagementPolicy::Delegate methods.
   // If |error| is not NULL, it will be filled with an error message if the
   // requested extension action (install, modify status, etc.) is not permitted.
   bool ExtensionManagementPolicyImpl(string16* error) const;
 
   void LeaveManagedModeImpl();
 
   const ManagedModeURLFilter* GetURLFilterForIOThreadImpl();
   const ManagedModeURLFilter* GetURLFilterForUIThreadImpl();
 
+  int GetCategoryImpl(const GURL& url);
+
   void FinalizeEnter(bool result);
 
   // Platform-specific methods that confirm whether we can enter or leave
   // managed mode.
   virtual bool PlatformConfirmEnter();
   virtual bool PlatformConfirmLeave();
 
   virtual bool IsInManagedModeImpl() const;
 
   // Enables or disables managed mode and registers or unregisters it with the
@@ skipping 40 matching lines @@
   scoped_ptr<URLFilterContext> io_url_filter_context_;
   scoped_ptr<URLFilterContext> ui_url_filter_context_;
 
   std::set<Browser*> browsers_to_close_;
   std::vector<EnterCallback> callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(ManagedMode);
 };
 
 #endif  // CHROME_BROWSER_MANAGED_MODE_MANAGED_MODE_H_