Delay bookmarks load while the profile is loading.

chrome/browser/profiles/startup_task_runner_service.h

Index: chrome/browser/profiles/startup_task_runner_service.h
diff --git a/chrome/browser/profiles/startup_task_runner_service.h b/chrome/browser/profiles/startup_task_runner_service.h
new file mode 100644
index 0000000000000000000000000000000000000000..034f32fc1a487edde95f2b25b442d3b70ec68bde
--- /dev/null
+++ b/chrome/browser/profiles/startup_task_runner_service.h
@@ -0,0 +1,42 @@
+// Copyright (c) 2013 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_PROFILES_STARTUP_TASK_RUNNER_SERVICE_H_
+#define CHROME_BROWSER_PROFILES_STARTUP_TASK_RUNNER_SERVICE_H_
+
+#include "base/deferred_sequenced_task_runner.h"

[erikwright (departed), 2013/04/15 17:56:25]

forward-decl should be sufficient?

[msarda, 2013/04/17 09:53:55]

Done.

[erikwright (departed), 2013/04/17 14:41:19]

Oops, not done, you can remove the #include here.

[msarda, 2013/04/17 15:29:10]

Done for real now.

+#include "base/memory/scoped_ptr.h"

[erikwright (departed), 2013/04/15 17:56:25]

not required?

[msarda, 2013/04/17 09:53:55]

Done.

+#include "base/threading/non_thread_safe.h"
+#include "chrome/browser/profiles/profile_keyed_service.h"
+
+class Profile;
+class ProfileDownloader;

[erikwright (departed), 2013/04/15 17:56:25]

Not required?

[msarda, 2013/04/17 09:53:55]

Done.

+
+// This service manages the startup task runners.
+class StartupTaskRunnerService : public base::NonThreadSafe,
+                                 public ProfileKeyedService {
+ public:
+  explicit StartupTaskRunnerService(Profile* profile);
+  virtual ~StartupTaskRunnerService();
+
+  // Returns sequenced task runner where all bookmarks I/O operations are
+  // performed.
+  // This method should only be called from the UI thread.
+  // Note: Using a separate task runner per profile service gives a better
+  // management of the sequence in which the task are started in order to avoid
+  // congestion during start-up (e.g the caller may decide to start loading the
+  // bookmarks only after the history finished).
+  scoped_refptr<base::DeferredSequencedTaskRunner> GetBookmarkTaskRunner();

[erikwright (departed), 2013/04/15 17:56:25]

include ref_counted.h

[msarda, 2013/04/17 09:53:55]

Done.

+
+  // Starts the task runners that are deferred during start-up.
+  void StartDeferredTaskRunners();
+
+ private:
+  Profile* profile_;
+  scoped_refptr<base::DeferredSequencedTaskRunner> bookmark_task_runner_;
+
+  DISALLOW_COPY_AND_ASSIGN(StartupTaskRunnerService);

[erikwright (departed), 2013/04/15 17:56:25]

basic_types.h

[msarda, 2013/04/17 09:53:55]

Done.

+};
+
+#endif  // CHROME_BROWSER_PROFILES_STARTUP_TASK_RUNNER_SERVICE_H_