Fix password automation hooks to get pyauto test testSavePassword working.

chrome/browser/automation/automation_provider_observers.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_AUTOMATION_AUTOMATION_PROVIDER_OBSERVERS_H_
 #define CHROME_BROWSER_AUTOMATION_AUTOMATION_PROVIDER_OBSERVERS_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 1016 matching lines @@
 
   virtual void OnPasswordStoreRequestDone(
       CancelableRequestProvider::Handle handle,
       const std::vector<webkit_glue::PasswordForm*>& result);
 
  private:
   base::WeakPtr<AutomationProvider> provider_;
   scoped_ptr<IPC::Message> reply_message_;
 };
 
+// Observes when login entries stored in the password store are changed.  The
+// notifications are sent on BrowserThread::DB, the thread that interacts with
+// the web database.
+class PasswordStoreLoginsChangedObserver
+    : public base::RefCountedThreadSafe<
+          PasswordStoreLoginsChangedObserver,
+          BrowserThread::DeleteOnUIThread>,
+      public NotificationObserver {
+ public:
+  PasswordStoreLoginsChangedObserver(AutomationProvider* automation,
+                                     IPC::Message* reply_message,
+                                     const std::string& result_key);
+  virtual ~PasswordStoreLoginsChangedObserver();
+
+  // Schedules a task on the BrowserThread::DB thread to register the
+  // appropriate observers.
+  virtual void Init();
+
+  // NotificationObserver interface.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
+ private:
+  friend struct BrowserThread::DeleteOnThread<BrowserThread::UI>;
+  friend class DeleteTask<PasswordStoreLoginsChangedObserver>;
+
+  // Registers the appropriate observers.  Called on thread BrowserThread::DB.
+  void RegisterObserversTask();
+
+  // Sends the |reply_message_| to |automation_| indicating we're done.  Called
+  // on thread BrowserThread::UI (the main browser UI thread).
+  void IndicateDone();
+
+  base::WeakPtr<AutomationProvider> automation_;
+  scoped_ptr<IPC::Message> reply_message_;
+  NotificationRegistrar registrar_;
+  std::string result_key_;
+
+  // Used to ensure that thread BrowserThread::UI waits for thread
+  // BrowserThread::DB to finish registering observers before proceeding.
+  base::WaitableEvent done_event_;
+
+  DISALLOW_COPY_AND_ASSIGN(PasswordStoreLoginsChangedObserver);
+};
+
 // Allows the automation provider to wait for clearing browser data to finish.
 class AutomationProviderBrowsingDataObserver
     : public BrowsingDataRemover::Observer {
  public:
   AutomationProviderBrowsingDataObserver(
       AutomationProvider* provider,
       IPC::Message* reply_message);
   virtual ~AutomationProviderBrowsingDataObserver();
 
   virtual void OnBrowsingDataRemoverDone();
@@ skipping 404 matching lines @@
   // Sends the |reply_message_| to |automation_| indicating we're done.
   void RunOnUIThread();
 
   base::WeakPtr<AutomationProvider> automation_;
   scoped_ptr<IPC::Message> reply_message_;
 
   DISALLOW_COPY_AND_ASSIGN(WaitForProcessLauncherThreadToGoIdleObserver);
 };
 
 #endif  // CHROME_BROWSER_AUTOMATION_AUTOMATION_PROVIDER_OBSERVERS_H_