cc: Move SyncedScrollOffset to scroll tree

cc/proto/synced_property_conversions_unittest.cc

+// Copyright 2016 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 "cc/proto/synced_property_conversions.h"
+
+#include "cc/proto/synced_property.pb.h"
+#include "cc/trees/property_tree.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace cc {
+namespace {
+
+TEST(SyncedPropertyConversionTest, SerializeDeserializeSyncedScrollOffset) {
+  scoped_refptr<SyncedScrollOffset> synced_scroll_offset =
+      new SyncedScrollOffset();
+  synced_scroll_offset->PushFromMainThread(gfx::ScrollOffset(1, 2));
+  proto::SyncedProperty proto;
+  scoped_refptr<SyncedScrollOffset> serialized_synced_scroll_offset =
+      new SyncedScrollOffset();
+  SyncedScrollOffsetToProto(*synced_scroll_offset.get(), &proto);
+  ProtoToSyncedScrollOffset(proto, serialized_synced_scroll_offset.get());
+  EXPECT_EQ(synced_scroll_offset.get()->PendingBase(),
+            serialized_synced_scroll_offset.get()->PendingBase());
+  EXPECT_EQ(synced_scroll_offset.get()->PendingBase(),
+            serialized_synced_scroll_offset.get()->PendingBase());
+}
+
+}  // namespace
+}  // namespace cc