CC Animation: Move PropertyAnimationState and TargetProperty to trees.

cc/animation/target_property.cc

-// Copyright (c) 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/animation/target_property.h"
-
-#include "base/macros.h"
-
-namespace cc {
-
-namespace {
-
-static_assert(TargetProperty::FIRST_TARGET_PROPERTY == 0,
-              "TargetProperty must be 0-based enum");
-
-// This should match the TargetProperty enum.
-static const char* const s_targetPropertyNames[] = {
-    "TRANSFORM", "OPACITY", "FILTER", "SCROLL_OFFSET", "BACKGROUND_COLOR"};
-
-static_assert(static_cast<int>(TargetProperty::LAST_TARGET_PROPERTY) + 1 ==
-                  arraysize(s_targetPropertyNames),
-              "TargetPropertyEnumSize should equal the number of elements in "
-              "s_targetPropertyNames");
-
-}  // namespace
-
-const char* TargetProperty::GetName(TargetProperty::Type property) {
-  return s_targetPropertyNames[property];
-}
-
-}  // namespace cc