The optional Malware Details also collects HTTP cache information. See design...

chrome/browser/safe_browsing/malware_details.h

Index: chrome/browser/safe_browsing/malware_details.h
===================================================================
--- chrome/browser/safe_browsing/malware_details.h	(revision 80624)
+++ chrome/browser/safe_browsing/malware_details.h	(working copy)
@@ -10,29 +10,39 @@
 // users opt-in to do so from the malware warning page.
 
 // An instance of this class is generated when a malware warning page
-// is shown (SafeBrowsingBlockingPage). It is passed on to the
-// SafeBrowsing service when the warning goes away.
+// is shown (SafeBrowsingBlockingPage).
 
 #include <string>
 #include <vector>
 
 #include "base/hash_tables.h"
 #include "base/memory/linked_ptr.h"
+#include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/safe_browsing/report.pb.h"
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "content/browser/tab_contents/tab_contents_observer.h"
+#include "net/base/completion_callback.h"
 
 class TabContents;
 struct SafeBrowsingHostMsg_MalwareDOMDetails_Node;
 
+class MalwareDetailsCacheCollector;
 class MalwareDetailsFactory;
 
+namespace safe_browsing {
+// Maps a URL to its Resource.
+typedef base::hash_map<
+  std::string,
+  linked_ptr<safe_browsing::ClientMalwareReportRequest::Resource> > ResourceMap;
+}
+
 class MalwareDetails : public base::RefCountedThreadSafe<MalwareDetails>,
                        public TabContentsObserver {
  public:
   // Constructs a new MalwareDetails instance, using the factory.
   static MalwareDetails* NewMalwareDetails(
+      SafeBrowsingService* sb_service,
       TabContents* tab_contents,
       const SafeBrowsingService::UnsafeResource& resource);
 
@@ -42,34 +52,39 @@
     factory_ = factory;
   }
 
-  // The SafeBrowsingService calls this from the IO thread, to get the
-  // serialized report as a string and send it over.
-  const std::string* GetSerializedReport();
+  // The SafeBrowsingBlockingPage calls this from the IO thread when
+  // the user is leaving the blocking page and has opted-in to sending
+  // the report. We start the cache collection, and when we are done,
+  // we send the report.
+  void FinishCollection();
 
+  void OnCacheCollectionReady();
+
   // TabContentsObserver implementation.
   virtual bool OnMessageReceived(const IPC::Message& message);
 
  protected:
   friend class MalwareDetailsFactoryImpl;
 
-  MalwareDetails(TabContents* tab_contents,
+  MalwareDetails(SafeBrowsingService* sb_service,
+                 TabContents* tab_contents,
                  const SafeBrowsingService::UnsafeResource& resource);
 
+  virtual ~MalwareDetails();
+
   // Called on the IO thread with the DOM details.
   virtual void AddDOMDetails(
       const std::vector<SafeBrowsingHostMsg_MalwareDOMDetails_Node>& params);
 
-  virtual ~MalwareDetails();
+  // The report protocol buffer.
+  scoped_ptr<safe_browsing::ClientMalwareReportRequest> report_;
 
+  // Used to get a pointer to the HTTP cache.
+  net::URLRequestContextGetter* request_context_getter_;
+
  private:
   friend class base::RefCountedThreadSafe<MalwareDetails>;
 
-  // Maps a URL to its Resource.
-  typedef base::hash_map<
-    std::string,
-    linked_ptr<safe_browsing::ClientMalwareReportRequest::Resource> >
-  ResourceMap;
-
   // Starts the collection of the report.
   void StartCollection();
 
@@ -93,21 +108,28 @@
   void OnReceivedMalwareDOMDetails(
       const std::vector<SafeBrowsingHostMsg_MalwareDOMDetails_Node>& params);
 
+  scoped_refptr<SafeBrowsingService> sb_service_;
+
   const SafeBrowsingService::UnsafeResource resource_;
 
   // For every Url we collect we create a Resource message. We keep
   // them in a map so we can avoid duplicates.
-  ResourceMap resources_;
+  safe_browsing::ResourceMap resources_;
 
-  // The report protocol buffer.
-  scoped_ptr<safe_browsing::ClientMalwareReportRequest> report_;
+  // Result from the cache extractor.
+  int cache_result_;
 
   // The factory used to instanciate SafeBrowsingBlockingPage objects.
   // Usefull for tests, so they can provide their own implementation of
   // SafeBrowsingBlockingPage.
   static MalwareDetailsFactory* factory_;
 
+  // Used to collect details from the HTTP Cache.
+  scoped_refptr<MalwareDetailsCacheCollector> cache_collector_;
+
   FRIEND_TEST_ALL_PREFIXES(MalwareDetailsTest, MalwareDOMDetails);
+  FRIEND_TEST_ALL_PREFIXES(MalwareDetailsTest, HTTPCache);
+  FRIEND_TEST_ALL_PREFIXES(MalwareDetailsTest, HTTPCacheNoEntries);
 
   DISALLOW_COPY_AND_ASSIGN(MalwareDetails);
 };
@@ -118,6 +140,7 @@
   virtual ~MalwareDetailsFactory() { }
 
   virtual MalwareDetails* CreateMalwareDetails(
+      SafeBrowsingService* sb_service,
       TabContents* tab_contents,
       const SafeBrowsingService::UnsafeResource& unsafe_resource) = 0;
 };