sync: move internal_api components used by chrome/browser into internal_api/public

TBR=jhawkins@chromium.org

BUG=131130
TEST=


Review URL: https://chromiumcodereview.appspot.com/10534080

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@142626 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 36 insertions, 0 deletions

diff --git a/sync/internal_api/public/util/weak_handle.cc b/sync/internal_api/public/util/weak_handle.cc
new file mode 100644
index 0000000..136fc58
--- /dev/null
+++ b/sync/internal_api/public/util/weak_handle.cc
@@ -0,0 +1,36 @@
+// Copyright (c) 2012 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 "sync/internal_api/public/util/weak_handle.h"
+
+#include <sstream>
+
+#include "base/callback.h"
+#include "base/location.h"
+#include "base/message_loop_proxy.h"
+
+namespace browser_sync {
+
+namespace internal {
+
+WeakHandleCoreBase::WeakHandleCoreBase()
+    : owner_loop_proxy_(base::MessageLoopProxy::current()) {}
+
+bool WeakHandleCoreBase::IsOnOwnerThread() const {
+  return owner_loop_proxy_->BelongsToCurrentThread();
+}
+
+WeakHandleCoreBase::~WeakHandleCoreBase() {}
+
+void WeakHandleCoreBase::PostToOwnerThread(
+    const tracked_objects::Location& from_here,
+    const base::Closure& fn) const {
+  if (!owner_loop_proxy_->PostTask(from_here, fn)) {
+    DVLOG(1) << "Could not post task from " << from_here.ToString();
+  }
+}
+
+}  // namespace internal
+
+}  // namespace base