| // Copyright 2013 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_SITE_DETAILS_H_ |
| #define CHROME_BROWSER_SITE_DETAILS_H_ |
| |
| #include <stdint.h> |
| |
| #include "base/containers/hash_tables.h" |
| #include "base/macros.h" |
| #include "content/public/browser/browser_context.h" |
| #include "content/public/browser/site_instance.h" |
| #include "content/public/browser/web_contents.h" |
| |
| // Collects information for a browsing instance assuming some alternate |
| // isolation scenario. |
| struct ScenarioBrowsingInstanceInfo { |
| ScenarioBrowsingInstanceInfo(); |
| ~ScenarioBrowsingInstanceInfo(); |
| |
| std::set<GURL> sites; |
| }; |
| using ScenarioBrowsingInstanceMap = |
| base::hash_map<int32_t, ScenarioBrowsingInstanceInfo>; |
| |
| // Collects metrics about an actual browsing instance in the current session. |
| struct BrowsingInstanceInfo { |
| BrowsingInstanceInfo(); |
| ~BrowsingInstanceInfo(); |
| |
| std::set<content::SiteInstance*> site_instances; |
| int proxy_count = 0; |
| }; |
| using BrowsingInstanceMap = |
| base::hash_map<content::SiteInstance*, BrowsingInstanceInfo>; |
| |
| // This enum represents various alternative process model policies that we want |
| // to evaluate. We'll estimate the process cost of each scenario. |
| enum IsolationScenarioType { |
| ISOLATE_NOTHING, |
| ISOLATE_ALL_SITES, |
| ISOLATE_HTTPS_SITES, |
| ISOLATE_EXTENSIONS, |
| ISOLATION_SCENARIO_LAST = ISOLATE_EXTENSIONS |
| }; |
| |
| // Contains the state required to estimate the process count under a particular |
| // process model. We have one of these per IsolationScenarioType. |
| struct IsolationScenario { |
| IsolationScenario(); |
| ~IsolationScenario(); |
| |
| IsolationScenarioType policy = ISOLATE_NOTHING; |
| std::set<GURL> all_sites; |
| ScenarioBrowsingInstanceMap browsing_instances; |
| }; |
| |
| // Information about the sites and SiteInstances in each BrowsingInstance, for |
| // use in estimating the number of processes needed for various process models. |
| struct SiteData { |
| SiteData(); |
| ~SiteData(); |
| |
| // One IsolationScenario object per IsolationScenarioType. |
| IsolationScenario scenarios[ISOLATION_SCENARIO_LAST + 1]; |
| |
| // This map groups related SiteInstances together into BrowsingInstances. The |
| // first SiteInstance we see in a BrowsingInstance is designated as the |
| // 'primary' SiteInstance, and becomes the key of this map. |
| BrowsingInstanceMap browsing_instances; |
| |
| // A count of all RenderFrameHosts, which are in a different SiteInstance from |
| // their parents. |
| int out_of_process_frames = 0; |
| }; |
| |
| // Maps a BrowserContext to information about the sites it contains. |
| typedef base::hash_map<content::BrowserContext*, SiteData> |
| BrowserContextSiteDataMap; |
| |
| class SiteDetails { |
| public: |
| // Collect information about all committed sites in the given WebContents |
| // on the UI thread. |
| static void CollectSiteInfo(content::WebContents* contents, |
| SiteData* site_data); |
| |
| // Updates the global histograms for tracking memory usage. |
| static void UpdateHistograms(const BrowserContextSiteDataMap& site_data_map, |
| int all_renderer_process_count, |
| int non_renderer_process_count); |
| |
| private: |
| // Never needs to be constructed. |
| SiteDetails(); |
| ~SiteDetails(); |
| |
| DISALLOW_COPY_AND_ASSIGN(SiteDetails); |
| }; |
| |
| #endif // CHROME_BROWSER_SITE_DETAILS_H_ |