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

chrome/browser/chromeos/cros_settings.cc

Index: chrome/browser/chromeos/cros_settings.cc
diff --git a/chrome/browser/chromeos/cros_settings.cc b/chrome/browser/chromeos/cros_settings.cc
index d2bb5c96b87179e2905c609767af85258d6330e6..c4e88521d6a5c3ca49714b0bc06041295acb2faf 100644
--- a/chrome/browser/chromeos/cros_settings.cc
+++ b/chrome/browser/chromeos/cros_settings.cc
@@ -124,6 +124,14 @@ bool CrosSettings::FindEmailInList(const std::string& path,
 bool CrosSettings::AddSettingsProvider(CrosSettingsProvider* provider) {
   DCHECK(CalledOnValidThread());
   providers_.push_back(provider);
+
+  // Allow the provider to notify this object when settings have changed.
+  // Providers instantiated inside this class will have the same callback
+  // passed to their constructor, but doing it here allows for providers
+  // to be instantiated outside this class.
+  CrosSettingsProvider::NotifyObserversCallback notify_cb(
+      base::Bind(&CrosSettings::FireObservers, base::Unretained(this)));
+  provider->SetNotifyObserversCallback(notify_cb);
   return true;
 }