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"
 #include "base/callback_forward.h"
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/synchronization/lock.h"
+#include "chrome/browser/io_thread.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
 #include "chrome/browser/prefs/pref_member.h"
 #include "content/public/browser/resource_context.h"
 #include "net/cookies/cookie_monster.h"
 #include "net/url_request/url_request_job_factory.h"
 
 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 82 matching lines @@
   void InitializeMetricsEnabledStateOnUIThread();
 
   // Returns whether or not metrics reporting is enabled in the browser instance
   // on which this profile resides. This is safe for use from the IO thread, and
   // should only be called from there.
   bool GetMetricsEnabledStateOnIOThread() const;
 
  protected:
   class AppRequestContext : public ChromeURLRequestContext {
    public:
-    AppRequestContext();
+    explicit AppRequestContext(chrome_browser_net::CacheStats* cache_stats);
 
     void SetCookieStore(net::CookieStore* cookie_store);
     void SetHttpTransactionFactory(net::HttpTransactionFactory* http_factory);
 
    private:
     virtual ~AppRequestContext();
 
     scoped_refptr<net::CookieStore> cookie_store_;
     scoped_ptr<net::HttpTransactionFactory> http_factory_;
   };
@@ skipping 82 matching lines @@
     return proxy_service_.get();
   }
 
   void set_http_server_properties_manager(
       chrome_browser_net::HttpServerPropertiesManager* manager) const;
 
   ChromeURLRequestContext* main_request_context() const {
     return main_request_context_.get();
   }
 
+  chrome_browser_net::CacheStats* cache_stats() const {
+    return cache_stats_;
+  }
+
   // Destroys the ResourceContext first, to cancel any URLRequests that are
   // using it still, before we destroy the member variables that those
   // URLRequests may be accessing.
   void DestroyResourceContext();
 
  private:
   class ResourceContext : public content::ResourceContext {
    public:
     explicit ResourceContext(ProfileIOData* io_data);
     virtual ~ResourceContext();
@@ skipping 32 matching lines @@
 
   // These functions are used to transfer ownership of the lazily initialized
   // context from ProfileIOData to the URLRequestContextGetter.
   virtual ChromeURLRequestContext*
       AcquireMediaRequestContext() const = 0;
   virtual ChromeURLRequestContext*
       AcquireIsolatedAppRequestContext(
           ChromeURLRequestContext* main_context,
           const std::string& app_id) const = 0;
 
+  // Returns the CacheStats object to be used for this profile.
+  virtual chrome_browser_net::CacheStats* GetCacheStats(
+      IOThread::Globals* io_thread_globals) const = 0;
+
   // The order *DOES* matter for the majority of these member variables, so
   // don't move them around unless you know what you're doing!
   // General rules:
   //   * ResourceContext references the URLRequestContexts, so
   //   URLRequestContexts must outlive ResourceContext, hence ResourceContext
   //   should be destroyed first.
   //   * URLRequestContexts reference a whole bunch of members, so
   //   URLRequestContext needs to be destroyed before them.
   //   * Therefore, ResourceContext should be listed last, and then the
   //   URLRequestContexts, and then the URLRequestContext members.
@@ skipping 52 matching lines @@
   mutable AppRequestContextMap app_request_context_map_;
 
   mutable scoped_ptr<ResourceContext> resource_context_;
 
   mutable scoped_refptr<ExtensionInfoMap> extension_info_map_;
   mutable scoped_refptr<CookieSettings> cookie_settings_;
 
   mutable scoped_ptr<chrome_browser_net::ResourcePrefetchPredictorObserver>
       resource_prefetch_predictor_observer_;
 
+  mutable chrome_browser_net::CacheStats* cache_stats_;
+
   // 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_