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 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();
 
     // ResourceContext implementation:
     virtual net::HostResolver* GetHostResolver() OVERRIDE;
     virtual net::URLRequestContext* GetRequestContext() OVERRIDE;
 
    private:
     friend class ProfileIOData;
 
     void EnsureInitialized();
 
     ProfileIOData* const io_data_;
 
     net::HostResolver* host_resolver_;
     net::URLRequestContext* request_context_;
   };
 
   typedef base::hash_map<std::string, ChromeURLRequestContext*>
       AppRequestContextMap;
 
+  // Returns the CacheStats object to be used for this profile
+  // (may be NULL for OTR profiles).
+  virtual chrome_browser_net::CacheStats* GetCacheStats(

[willchan no longer on Chromium, 2012/07/26 20:03:38]

Can you move this to the virtual interface section below? And make it pure like
all the other virtuals to be consistent.

[tburkard, 2012/07/26 20:52:31]

Done.

+      IOThread* io_thread) const;
+
   // --------------------------------------------
   // Virtual interface for subtypes to implement:
   // --------------------------------------------
 
   // Does the actual initialization of the ProfileIOData subtype. Subtypes
   // should use the static helper functions above to implement this.
   virtual void LazyInitializeInternal(ProfileParams* profile_params) const = 0;
 
   // Does an on-demand initialization of a RequestContext for the given
   // isolated app.
@@ skipping 75 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_