chrome/browser/site_details.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_SITE_DETAILS_H_
   6 #define CHROME_BROWSER_SITE_DETAILS_H_
   7
   8 #include "base/containers/hash_tables.h"
   9 #include "content/public/browser/browser_context.h"
  10 #include "content/public/browser/site_instance.h"
  11 #include "content/public/browser/web_contents.h"
  12
  13 // Maps an ID representing each BrowsingInstance to a set of site URLs.
  14 typedef base::hash_map<int32, std::set<GURL> > BrowsingInstanceSiteMap;
  15
  16 // Information about the sites and SiteInstances in each BrowsingInstance, for
  17 // use in estimating the number of processes needed for various process models.
  18 struct SiteData {
  19   SiteData();
  20   ~SiteData();
  21
  22   std::set<GURL> sites;
  23   std::set<GURL> https_sites;
  24   std::vector<content::SiteInstance*> instances;
  25   BrowsingInstanceSiteMap instance_site_map;
  26   BrowsingInstanceSiteMap instance_https_site_map;
  27 };
  28
  29 // Maps a BrowserContext to information about the SiteInstances it contains.
  30 typedef base::hash_map<content::BrowserContext*, SiteData>
  31     BrowserContextSiteDataMap;
  32
  33 class SiteDetails {
  34  public:
  35   // Collect information about all committed sites in the given WebContents
  36   // on the UI thread.
  37   static void CollectSiteInfo(content::WebContents* contents,
  38                               SiteData* site_data);
  39
  40   // Updates the global histograms for tracking memory usage.
  41   static void UpdateHistograms(const BrowserContextSiteDataMap& site_data_map,
  42                                int all_renderer_process_count,
  43                                int non_renderer_process_count);
  44
  45  private:
  46   // Never needs to be constructed.
  47   SiteDetails();
  48   ~SiteDetails();
  49
  50   DISALLOW_COPY_AND_ASSIGN(SiteDetails);
  51 };
  52
  53 #endif  // CHROME_BROWSER_SITE_DETAILS_H_