Move more code from headers to implementation.

chrome/browser/policy/device_token_fetcher.cc

Index: chrome/browser/policy/device_token_fetcher.cc
diff --git a/chrome/browser/policy/device_token_fetcher.cc b/chrome/browser/policy/device_token_fetcher.cc
index 8c9497ed27e54367f9f8f7507317439bd1dff714..ce7ee4ba563b5322447e9de7452e9234e5a76019 100644
--- a/chrome/browser/policy/device_token_fetcher.cc
+++ b/chrome/browser/policy/device_token_fetcher.cc
@@ -57,6 +57,31 @@ namespace policy {
 
 namespace em = enterprise_management;
 
+DeviceTokenFetcher::ObserverRegistrar::ObserverRegistrar() {}
+
+DeviceTokenFetcher::ObserverRegistrar::~ObserverRegistrar() {
+  RemoveAll();
+}
+
+void DeviceTokenFetcher::ObserverRegistrar::Init(
+    DeviceTokenFetcher* token_fetcher) {
+  token_fetcher_ = token_fetcher;
+}
+
+void DeviceTokenFetcher::ObserverRegistrar::AddObserver(
+    DeviceTokenFetcher::Observer* observer) {
+  observers_.push_back(observer);
+  token_fetcher_->AddObserver(observer);
+}
+
+void DeviceTokenFetcher::ObserverRegistrar::RemoveAll() {
+  for (std::vector<DeviceTokenFetcher::Observer*>::iterator it =
+           observers_.begin(); it != observers_.end(); ++it) {
+    token_fetcher_->RemoveObserver(*it);
+  }
+  observers_.clear();
+}
+
 DeviceTokenFetcher::DeviceTokenFetcher(
     DeviceManagementBackend* backend,
     Profile* profile,
@@ -88,6 +113,8 @@ DeviceTokenFetcher::DeviceTokenFetcher(
 #endif
 }
 
+DeviceTokenFetcher::~DeviceTokenFetcher() {}
+
 void DeviceTokenFetcher::Observe(NotificationType type,
                                  const NotificationSource& source,
                                  const NotificationDetails& details) {