Apply individual policies for the various parts of device status reports.

chrome/browser/chromeos/cros_settings_provider.cc

Index: chrome/browser/chromeos/cros_settings_provider.cc
diff --git a/chrome/browser/chromeos/cros_settings_provider.cc b/chrome/browser/chromeos/cros_settings_provider.cc
index ca6fa8d01b3947b4b7fc320e3d65591185048e62..11f3e860f34ef667b4aa939b8fb52abe235e457d 100644
--- a/chrome/browser/chromeos/cros_settings_provider.cc
+++ b/chrome/browser/chromeos/cros_settings_provider.cc
@@ -34,7 +34,13 @@ void CrosSettingsProvider::Set(const std::string& path,
 }
 
 void CrosSettingsProvider::NotifyObservers(const std::string& path) {
-  notify_cb_.Run(path);
+  if (!notify_cb_.is_null())
+    notify_cb_.Run(path);
+}
+
+void CrosSettingsProvider::SetNotifyObserversCallback(
+    const NotifyObserversCallback& notify_cb) {
+  notify_cb_ = notify_cb;
 }
 
 };  // namespace chromeos