Initial commit of sync engine code to browser/sync.

The code is not built on any platform yet.  That will arrive
as a subsequent checkin.

This is an implementation of the interface exposed earlier
through syncapi.h.  It is the client side of a sync
protocol that lets users sync their browser data
(currently, just bookmarks) with their Google Account.

Table of contents:

browser/sync/
  protocol - The protocol definition, and
             other definitions necessary to connect to
             the service.
  syncable/ - defines a data model for syncable objects,
              and provides a sqlite-based backing store
              for this model.
  engine/ - includes the core sync logic, including commiting
            changes to the server, downloading changes from
            the server, resolving conflicts, other parts of
            the sync algorithm.
  engine/net - parts of the sync engine focused on the
               business of talking to the server.  Some of
               this is binds a generic "server connection"
               interface to a concrete implementation
               provided by Chromium.
  notifier - the part of the syncer focused on the business
             of sending and receiving xmpp notifications.
             Notifications are used instead of polling to
             achieve very low latency change propagation.
  util - not necessarily sync specific utility code.  Much
         of this is scaffolding which should either be
         replaced by, or merged with, the utility code
         in base/.

BUG=none
TEST=this code includes its own suite of unit tests.

Review URL: http://codereview.chromium.org/194065

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@25850 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 33 insertions, 0 deletions

diff --git a/chrome/browser/sync/notifier/base/timer.cc b/chrome/browser/sync/notifier/base/timer.cc
new file mode 100644
index 0000000..7fa20b4
--- /dev/null
+++ b/chrome/browser/sync/notifier/base/timer.cc
@@ -0,0 +1,33 @@
+// Copyright (c) 2009 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.
+
+#include "chrome/browser/sync/notifier/base/timer.h"
+
+namespace notifier {
+
+Timer::Timer(talk_base::Task* parent, int timeout_seconds, bool repeat)
+  : Task(parent),
+    repeat_(repeat) {
+
+  set_timeout_seconds(timeout_seconds);
+  Start();
+  ResumeTimeout();
+}
+
+Timer::~Timer() {
+}
+
+int Timer::OnTimeout() {
+  if (!repeat_) {
+    return STATE_DONE;
+  }
+  ResetTimeout();
+  return STATE_BLOCKED;
+}
+
+int Timer::ProcessStart() {
+  return STATE_BLOCKED;
+}
+
+}  // namespace notifier