Proof of concept implementation of context based history filtering.

chrome/browser/history/history_tab_helper.cc

 // 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.
 
 #include "chrome/browser/history/history_tab_helper.h"
 
 #include <utility>
 
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/prerender/prerender_contents.h"
@@ skipping 119 matching lines @@
 void HistoryTabHelper::TitleWasSet(NavigationEntry* entry, bool explicit_set) {
   if (received_page_title_)
     return;
 
   if (entry) {
     UpdateHistoryPageTitle(*entry);
     received_page_title_ = explicit_set;
   }
 }
 
+void HistoryTabHelper::SetHistoryContext(NavigationEntry* entry, int context) {
+  history::HistoryService* hs = GetHistoryService();
+  if (hs)
+    hs->SetPageHistoryContext(entry->GetVirtualURL(),
+                     static_cast<history::HistoryContext>(context));
+}
+
 history::HistoryService* HistoryTabHelper::GetHistoryService() {
   Profile* profile =
       Profile::FromBrowserContext(web_contents()->GetBrowserContext());
   if (profile->IsOffTheRecord())
     return NULL;
 
   return HistoryServiceFactory::GetForProfile(
       profile, ServiceAccessType::IMPLICIT_ACCESS);
 }
 
 void HistoryTabHelper::WebContentsDestroyed() {
   // We update the history for this URL.
   WebContents* tab = web_contents();
   Profile* profile = Profile::FromBrowserContext(tab->GetBrowserContext());
   if (profile->IsOffTheRecord())
     return;
 
   history::HistoryService* hs = HistoryServiceFactory::GetForProfile(
       profile, ServiceAccessType::IMPLICIT_ACCESS);
   if (hs) {
     NavigationEntry* entry = tab->GetController().GetLastCommittedEntry();
     history::ContextID context_id = history::ContextIDForWebContents(tab);
     if (entry) {
       hs->UpdateWithPageEndTime(context_id, entry->GetUniqueID(), tab->GetURL(),
                                 base::Time::Now());
     }
     hs->ClearCachedDataForContextID(context_id);
   }
 }