Adding histograms showing fraction of page load times

chrome/browser/profiles/profile_io_data.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_PROFILES_PROFILE_IO_DATA_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_IO_DATA_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 12 matching lines @@
 class CookieSettings;
 class DesktopNotificationService;
 class ExtensionInfoMap;
 class HostContentSettingsMap;
 class IOThread;
 class Profile;
 class ProtocolHandlerRegistry;
 class TransportSecurityPersister;
 
 namespace chrome_browser_net {
+class CacheStats;
 class HttpServerPropertiesManager;
 class ResourcePrefetchPredictorObserver;
 }
 
 namespace net {
 class CookieStore;
 class FraudulentCertificateReporter;
 class HttpTransactionFactory;
 class ServerBoundCertService;
 class ProxyConfigService;
@@ skipping 151 matching lines @@
 
   // Lazy initializes the ProfileIOData object the first time a request context
   // is requested. The lazy logic is implemented here. The actual initialization
   // is done in LazyInitializeInternal(), implemented by subtypes. Static helper
   // functions have been provided to assist in common operations.
   void LazyInitialize() const;
 
   // Called when the profile is destroyed.
   void ShutdownOnUIThread();
 
+  // Returns the CacheStats object to be used for this profile
+  // (may be NULL for OTR profiles).
+  virtual chrome_browser_net::CacheStats* GetCacheStats() const;
+
   BooleanPrefMember* enable_referrers() const {
     return &enable_referrers_;
   }
 
   ChromeURLDataManagerBackend* chrome_url_data_manager_backend() const {
     return chrome_url_data_manager_backend_.get();
   }
 
   // A ServerBoundCertService object is created by a derived class of
   // ProfileIOData, and the derived class calls this method to set the
@@ skipping 147 matching lines @@
 
   // TODO(jhawkins): Remove once crbug.com/102004 is fixed.
   bool initialized_on_UI_thread_;
 
   bool is_incognito_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileIOData);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_IO_DATA_H_