Clear in-memory caches of renderers when rules change

chrome/browser/extensions/api/web_request/web_request_api.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/extensions/api/web_request/web_request_api.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/json/json_writer.h"
@@ skipping 12 matching lines @@
 #include "chrome/browser/extensions/api/web_request/web_request_api_helpers.h"
 #include "chrome/browser/extensions/api/web_request/web_request_time_tracker.h"
 #include "chrome/browser/extensions/event_router.h"
 #include "chrome/browser/extensions/extension_info_map.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_tab_id_map.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/renderer_host/chrome_render_message_filter.h"
-#include "chrome/browser/renderer_host/web_cache_manager.h"
 #include "chrome/common/extensions/api/web_request.h"
 #include "chrome/common/extensions/event_filtering_info.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/extensions/extension_error_utils.h"
 #include "chrome/common/extensions/extension_messages.h"
 #include "chrome/common/extensions/url_pattern.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 196 matching lines @@
   content::BrowserContext* browser_context = profile;
   for (content::RenderProcessHost::iterator it =
           content::RenderProcessHost::AllHostsIterator();
        !it.IsAtEnd(); it.Advance()) {
     content::RenderProcessHost* host = it.GetCurrentValue();
     if (host->GetBrowserContext() == browser_context)
       SendExtensionWebRequestStatusToHost(host);
   }
 }
 
-void ClearCacheOnNavigationOnUI() {
-  WebCacheManager::GetInstance()->ClearCacheOnNavigation();
-}
-
 }  // namespace
 
 // Represents a single unique listener to an event, along with whatever filter
 // parameters and extra_info_spec were specified at the time the listener was
 // added.
 struct ExtensionWebRequestEventRouter::EventListener {
   std::string extension_id;
   std::string extension_name;
   std::string sub_event_name;
   RequestFilter filter;
@@ skipping 789 matching lines @@
       "extension=" << extension_id << " event=" << event_name;
 
   // Unblock any request that this event listener may have been blocking.
   for (std::set<uint64>::iterator it = found->blocked_requests.begin();
        it != found->blocked_requests.end(); ++it) {
     DecrementBlockCount(profile, extension_id, event_name, *it, NULL);
   }
 
   listeners_[profile][event_name].erase(listener);
 
-  BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
-                          base::Bind(&ClearCacheOnNavigationOnUI));
+  helpers::ClearCacheOnNavigation();
 }
 
 void ExtensionWebRequestEventRouter::OnOTRProfileCreated(
     void* original_profile, void* otr_profile) {
   cross_profile_map_[original_profile] = otr_profile;
   cross_profile_map_[otr_profile] = original_profile;
 }
 
 void ExtensionWebRequestEventRouter::OnOTRProfileDestroyed(
     void* original_profile, void* otr_profile) {
@@ skipping 593 matching lines @@
     return false;
   }
 
   bool success =
       ExtensionWebRequestEventRouter::GetInstance()->AddEventListener(
           profile_id(), extension_id(), extension_name,
           event_name, sub_event_name, filter,
           extra_info_spec, ipc_sender_weak());
   EXTENSION_FUNCTION_VALIDATE(success);
 
-  BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
-                          base::Bind(&ClearCacheOnNavigationOnUI));
+  helpers::ClearCacheOnNavigation();
 
   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, base::Bind(
       &NotifyWebRequestAPIUsed,
       profile_id(), make_scoped_refptr(GetExtension())));
 
   return true;
 }
 
 bool WebRequestEventHandled::RunImpl() {
   std::string event_name;
@@ skipping 128 matching lines @@
       base::Bind(&ExtensionWarningSet::NotifyWarningsOnUI,
                  profile_id(),
                  extension_ids,
                  ExtensionWarningSet::kRepeatedCacheFlushes));
 
   // Continue gracefully.
   Run();
 }
 
 bool WebRequestHandlerBehaviorChanged::RunImpl() {
-  BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
-                          base::Bind(&ClearCacheOnNavigationOnUI));
+  helpers::ClearCacheOnNavigation();
   return true;
 }
 
 void SendExtensionWebRequestStatusToHost(content::RenderProcessHost* host) {
   Profile* profile = Profile::FromBrowserContext(host->GetBrowserContext());
   if (!profile || !profile->GetExtensionService())
     return;
 
   bool adblock = false;
   bool adblock_plus = false;
   bool other = false;
   const ExtensionSet* extensions =
       profile->GetExtensionService()->extensions();
   for (ExtensionSet::const_iterator it = extensions->begin();
        it != extensions->end(); ++it) {
     if (profile->GetExtensionService()->HasUsedWebRequest(*it)) {
       if ((*it)->name().find("Adblock Plus") != std::string::npos) {
         adblock_plus = true;
       } else if ((*it)->name().find("AdBlock") != std::string::npos) {
         adblock = true;
       } else {
         other = true;
       }
     }
   }
 
   host->Send(new ExtensionMsg_UsingWebRequestAPI(adblock, adblock_plus, other));
 }