Make content settings map updates live.

chrome/browser/content_exceptions_table_model.cc

Index: chrome/browser/content_exceptions_table_model.cc
diff --git a/chrome/browser/content_exceptions_table_model.cc b/chrome/browser/content_exceptions_table_model.cc
index 4d4eda97b874d3a39b187a19a1f7f1e2d1b6be8c..6103e72cc4bad18f5fb50721a45d2743c60de6d6 100644
--- a/chrome/browser/content_exceptions_table_model.cc
+++ b/chrome/browser/content_exceptions_table_model.cc
@@ -16,6 +16,9 @@ ContentExceptionsTableModel::ContentExceptionsTableModel(
     : map_(map),
       content_type_(type),
       observer_(NULL) {
+  registrar_.Add(this, NotificationType::CONTENT_SETTINGS_CHANGED,
+                 NotificationService::AllSources());
+
   // Load the contents.
   map->GetSettingsForOneType(type, &entries_);
 }
@@ -89,3 +92,18 @@ std::wstring ContentExceptionsTableModel::GetText(int row, int column_id) {
 void ContentExceptionsTableModel::SetObserver(TableModelObserver* observer) {
   observer_ = observer;
 }
+
+void ContentExceptionsTableModel::Observe(
+    NotificationType type,
+    const NotificationSource& source,
+    const NotificationDetails& details) {
+  // XXX: check the notification is for the right type
+fprintf(stderr, "observing\n");
+  // Reload the contents.
+  map_->GetSettingsForOneType(content_type_, &entries_);
+
+  if (observer_) {
+fprintf(stderr, "notifying\n");
+    observer_->OnModelChanged();
+  }
+}