cc: Fix uninitialized TransformNodeData member

cc/trees/property_tree.cc

 // Copyright 2014 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 <set>
 #include <vector>
 
 #include "base/logging.h"
 #include "cc/base/math_util.h"
 #include "cc/trees/property_tree.h"
@@ skipping 40 matching lines @@
       source_node_id(-1),
       needs_local_transform_update(true),
       is_invertible(true),
       ancestors_are_invertible(true),
       is_animated(false),
       to_screen_is_animated(false),
       flattens_inherited_transform(false),
       node_and_ancestors_are_flat(true),
       scrolls(false),
       needs_sublayer_scale(false),
-      layer_scale_factor(1.0f) {
+      layer_scale_factor(1.0f),
+      post_local_scale_factor(1.0f) {
 }
 
 TransformNodeData::~TransformNodeData() {
 }
 
 void TransformNodeData::update_pre_local_transform(
     const gfx::Point3F& transform_origin) {
   pre_local.MakeIdentity();
   pre_local.Translate3d(-transform_origin.x(), -transform_origin.y(),
                         -transform_origin.z());
@@ skipping 307 matching lines @@
   node->data.from_screen.matrix().postTranslate(-translation.x(),
                                                 -translation.y(), 0);
 
   node->data.scroll_snap = translation;
 }
 
 PropertyTrees::PropertyTrees() : needs_rebuild(true), sequence_number(0) {
 }
 
 }  // namespace cc