Add enableReferrers and enableHyperlinkAuditing to contentSettings.misc API.

chrome/browser/net/chrome_network_delegate.cc

 // Copyright (c) 2011 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/net/chrome_network_delegate.h"
 
 #include "base/logging.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/browser/extensions/extension_event_router_forwarder.h"
 #include "chrome/browser/extensions/extension_proxy_api.h"
 #include "chrome/browser/extensions/extension_webrequest_api.h"
+#include "chrome/browser/prefs/pref_member.h"
+#include "chrome/common/pref_names.h"
+#include "content/browser/browser_thread.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_request_headers.h"
 #include "net/url_request/url_request.h"
 
 namespace {
 
 // If the |request| failed due to problems with a proxy, forward the error to
 // the proxy extension API.
 void ForwardProxyErrors(net::URLRequest* request,
                         ExtensionEventRouterForwarder* event_router,
                         ProfileId profile_id) {
   if (request->status().status() == net::URLRequestStatus::FAILED) {
     switch (request->status().os_error()) {
       case net::ERR_PROXY_AUTH_UNSUPPORTED:
       case net::ERR_PROXY_CONNECTION_FAILED:
       case net::ERR_TUNNEL_CONNECTION_FAILED:
         ExtensionProxyEventRouter::GetInstance()->OnProxyError(
             event_router, profile_id, request->status().os_error());
     }
   }
 }
 
 }  // namespace
 
 ChromeNetworkDelegate::ChromeNetworkDelegate(
     ExtensionEventRouterForwarder* event_router,
     ProfileId profile_id,
+    BooleanPrefMember* enable_referrers,
     ProtocolHandlerRegistry* protocol_handler_registry)
     : event_router_(event_router),
       profile_id_(profile_id),
+      enable_referrers_(enable_referrers),
       protocol_handler_registry_(protocol_handler_registry) {
   DCHECK(event_router);
+  DCHECK(enable_referrers);
 }
 
 ChromeNetworkDelegate::~ChromeNetworkDelegate() {}
 
+// static
+void ChromeNetworkDelegate::InitializeReferrersEnabled(
+    BooleanPrefMember* enable_referrers,
+    PrefService* pref_service) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  enable_referrers->Init(prefs::kEnableReferrers, pref_service, NULL);
+  enable_referrers->MoveToThread(BrowserThread::IO);
+}
+
 int ChromeNetworkDelegate::OnBeforeURLRequest(
     net::URLRequest* request, net::CompletionCallback* callback) {
+  if (!enable_referrers_->GetValue())
+    request->set_referrer(std::string());
   return ExtensionWebRequestEventRouter::GetInstance()->OnBeforeRequest(
       profile_id_, event_router_.get(), request, callback);
 }
 
 int ChromeNetworkDelegate::OnBeforeSendHeaders(
     uint64 request_id,
     net::HttpRequestHeaders* headers,
     net::CompletionCallback* callback) {
   return ExtensionWebRequestEventRouter::GetInstance()->OnBeforeSendHeaders(
       profile_id_, event_router_.get(), request_id, headers, callback);
@@ skipping 12 matching lines @@
   ExtensionWebRequestEventRouter::GetInstance()->OnURLRequestDestroyed(
       profile_id_, request);
 }
 
 net::URLRequestJob* ChromeNetworkDelegate::OnMaybeCreateURLRequestJob(
       net::URLRequest* request) {
   if (!protocol_handler_registry_)
     return NULL;
   return protocol_handler_registry_->MaybeCreateJob(request);
 }