Add enableReferrers and enableHyperlinkAuditing to contentSettings.misc API.

chrome/browser/renderer_host/browser_render_process_host.cc

Index: chrome/browser/renderer_host/browser_render_process_host.cc
diff --git a/chrome/browser/renderer_host/browser_render_process_host.cc b/chrome/browser/renderer_host/browser_render_process_host.cc
index 14fedea031c1134828f5db6f288eda7f63c20d1c..a76700c1a8606d4c30b52d0e005b863b6ab90451 100644
--- a/chrome/browser/renderer_host/browser_render_process_host.cc
+++ b/chrome/browser/renderer_host/browser_render_process_host.cc
@@ -285,6 +285,7 @@ BrowserRenderProcessHost::BrowserRenderProcessHost(Profile* profile)
             this, &BrowserRenderProcessHost::ClearTransportDIBCache)),
       accessibility_enabled_(false),
       extension_process_(false),
+      resource_message_filter_(NULL),
       callback_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
   widget_helper_ = new RenderWidgetHelper();
 
@@ -360,6 +361,8 @@ bool BrowserRenderProcessHost::Init(
   // content, e.g. if an extension calls window.open.
   extension_process_ = extension_process_ || is_extensions_process;
 
+  pref_change_registrar_.Init(profile()->GetPrefs());
+
   // run the IPC channel on the shared IO thread.
   base::Thread* io_thread = g_browser_process->io_thread();
 
@@ -461,13 +464,14 @@ void BrowserRenderProcessHost::CreateMessageFilters() {
   scoped_refptr<RendererURLRequestContextOverride> url_request_context_override(
       new RendererURLRequestContextOverride(profile(), installed_app_));
 
-  ResourceMessageFilter* resource_message_filter = new ResourceMessageFilter(
+  resource_message_filter_ = new ResourceMessageFilter(
       id(), ChildProcessInfo::RENDER_PROCESS,
       g_browser_process->resource_dispatcher_host());
-  resource_message_filter->set_url_request_context_override(
+  resource_message_filter_->set_url_request_context_override(
       url_request_context_override);
-  channel_->AddFilter(resource_message_filter);
-
+  pref_change_registrar_.Add(prefs::kEnableReferrers, this);
+  UpdateReferrersEnabled();
+  channel_->AddFilter(resource_message_filter_);
   channel_->AddFilter(new AudioRendererHost());
   channel_->AddFilter(
       new AppCacheDispatcherHost(profile()->GetRequestContext(), id()));
@@ -1096,6 +1100,8 @@ void BrowserRenderProcessHost::OnChannelError() {
 
   ClearTransportDIBCache();
 
+  pref_change_registrar_.RemoveAll();
+
   // this object is not deleted at this point and may be reused later.
   // TODO(darin): clean this up
 }
@@ -1169,6 +1175,15 @@ void BrowserRenderProcessHost::Observe(NotificationType type,
           prefs->GetBoolean(prefs::kEnableAutoSpellCorrect));
       break;
     }
+    case NotificationType::PREF_CHANGED: {
+      std::string* pref = Details<std::string>(details).ptr();
+      if (*pref == prefs::kEnableReferrers) {
+        UpdateReferrersEnabled();
+      } else {
+        NOTREACHED();
+      }
+      break;
+    }
     default: {
       NOTREACHED();
       break;
@@ -1318,3 +1333,9 @@ void BrowserRenderProcessHost::OpenPhishingModelDone(
     Send(new SafeBrowsingMsg_SetPhishingModel(file));
   }
 }
+
+void BrowserRenderProcessHost::UpdateReferrersEnabled() {
+  DCHECK(resource_message_filter_);
+  resource_message_filter_->set_referrers_enabled(
+      profile()->GetPrefs()->GetBoolean(prefs::kEnableReferrers));
+}