Implemented CSSPropertyAPI for transform property.

third_party/WebKit/Source/core/css/BUILD.gn

 # 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.
 
 import("//third_party/WebKit/Source/core/core.gni")
 
 blink_core_sources("css") {
   split_count = 5
   sources = [
     "ActiveStyleSheets.cpp",
@@ skipping 445 matching lines @@
     "properties/CSSPropertyAPIStrokeOrLength.cpp",
     "properties/CSSPropertyAPITabSize.cpp",
     "properties/CSSPropertyAPITextDecoration.cpp",
     "properties/CSSPropertyAPITextDecorationColor.cpp",
     "properties/CSSPropertyAPITextDecorationLine.cpp",
     "properties/CSSPropertyAPITextDecorationSkip.cpp",
     "properties/CSSPropertyAPITextIndent.cpp",
     "properties/CSSPropertyAPITextSizeAdjust.cpp",
     "properties/CSSPropertyAPITextUnderlinePosition.cpp",
     "properties/CSSPropertyAPITouchAction.cpp",
+    "properties/CSSPropertyAPITransform.cpp",
     "properties/CSSPropertyAPITransformOrigin.cpp",
     "properties/CSSPropertyAPITranslate.cpp",
     "properties/CSSPropertyAPIVerticalAlign.cpp",
     "properties/CSSPropertyAPIWebkitBorderImage.cpp",
     "properties/CSSPropertyAPIWebkitBorderSpacing.cpp",
     "properties/CSSPropertyAPIWebkitBorderWidth.cpp",
     "properties/CSSPropertyAPIWebkitBoxFlex.cpp",
     "properties/CSSPropertyAPIWebkitBoxFlexGroup.cpp",
     "properties/CSSPropertyAPIWebkitFontSizeDelta.cpp",
     "properties/CSSPropertyAPIWebkitHighlight.cpp",
@@ skipping 72 matching lines @@
     "resolver/TransformBuilder.h",
     "resolver/ViewportStyleResolver.cpp",
     "resolver/ViewportStyleResolver.h",
   ]
 
   configs += [
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     "//build/config/compiler:no_size_t_to_int_warning",
   ]
 }