Move more code from headers to implementation.

chrome/browser/policy/device_token_fetcher.h

Index: chrome/browser/policy/device_token_fetcher.h
diff --git a/chrome/browser/policy/device_token_fetcher.h b/chrome/browser/policy/device_token_fetcher.h
index 9b991dea759f965af6966750ac5611beb818d0a1..c36af5b79a22c9cfea8811a9b2f8f545823592c2 100644
--- a/chrome/browser/policy/device_token_fetcher.h
+++ b/chrome/browser/policy/device_token_fetcher.h
@@ -43,23 +43,12 @@ class DeviceTokenFetcher
 
   class ObserverRegistrar {
    public:
-    void Init(DeviceTokenFetcher* token_fetcher) {
-      token_fetcher_ = token_fetcher;
-    }
-    ~ObserverRegistrar() {
-      RemoveAll();
-    }
-    void AddObserver(DeviceTokenFetcher::Observer* observer) {
-      observers_.push_back(observer);
-      token_fetcher_->AddObserver(observer);
-    }
-    void RemoveAll() {
-      for (std::vector<DeviceTokenFetcher::Observer*>::iterator it =
-          observers_.begin(); it != observers_.end(); ++it) {
-        token_fetcher_->RemoveObserver(*it);
-      }
-      observers_.clear();
-    }
+    ObserverRegistrar();
+    ~ObserverRegistrar();
+
+    void Init(DeviceTokenFetcher* token_fetcher);
+    void AddObserver(DeviceTokenFetcher::Observer* observer);
+    void RemoveAll();
    private:
     DeviceTokenFetcher* token_fetcher_;
     std::vector<DeviceTokenFetcher::Observer*> observers_;
@@ -71,7 +60,7 @@ class DeviceTokenFetcher
   DeviceTokenFetcher(DeviceManagementBackend* backend,
                      Profile* profile,
                      const FilePath& token_path);
-  virtual ~DeviceTokenFetcher() {}
+  virtual ~DeviceTokenFetcher();
 
   // NotificationObserver method overrides:
   virtual void Observe(NotificationType type,