Move property tree debugging code to platform/graphics/paint/ (try #2)

third_party/WebKit/Source/core/paint/PaintPropertyTreePrinterTest.cpp

 // 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 "core/paint/PaintPropertyTreePrinter.h"
 
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutTestHelper.h"
 #include "platform/testing/RuntimeEnabledFeaturesTestHelpers.h"
 #include "testing/gmock/include/gmock/gmock-matchers.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-#ifndef NDEBUG
+#if DCHECK_IS_ON()
 
 namespace blink {
 
 typedef bool TestParamRootLayerScrolling;
 class PaintPropertyTreePrinterTest
     : public ::testing::WithParamInterface<TestParamRootLayerScrolling>,
       private ScopedSlimmingPaintV2ForTest,
       private ScopedRootLayerScrollingForTest,
       public RenderingTest {
  public:
@@ skipping 53 matching lines @@
 }
 
 TEST_P(PaintPropertyTreePrinterTest, SimpleTransformTreePath) {
   setBodyInnerHTML(
       "<div id='transform' style='transform: translate3d(10px, 10px, "
       "0px);'></div>");
   LayoutObject* transformedObject =
       document().getElementById("transform")->layoutObject();
   const auto* transformedObjectProperties =
       transformedObject->paintProperties();
-  String transformPathAsString = transformPaintPropertyPathAsString(
-      transformedObjectProperties->transform());
+  String transformPathAsString =
+      transformedObjectProperties->transform()->toTreeString();
   EXPECT_THAT(transformPathAsString.ascii().data(),
               testing::MatchesRegex("root .* transform.*"
                                     "  .* transform.*"
                                     "    .* transform.*"
                                     "       .* transform.*"));
 }
 
 TEST_P(PaintPropertyTreePrinterTest, SimpleClipTreePath) {
   setBodyInnerHTML(
       "<div id='clip' style='position: absolute; clip: rect(10px, 80px, 70px, "
       "40px);'></div>");
   LayoutObject* clippedObject =
       document().getElementById("clip")->layoutObject();
   const auto* clippedObjectProperties = clippedObject->paintProperties();
-  String clipPathAsString =
-      clipPaintPropertyPathAsString(clippedObjectProperties->cssClip());
+  String clipPathAsString = clippedObjectProperties->cssClip()->toTreeString();
   EXPECT_THAT(clipPathAsString.ascii().data(),
               testing::MatchesRegex("root .* rect.*"
                                     "  .* rect.*"
                                     "    .* rect.*"));
 }
 
 TEST_P(PaintPropertyTreePrinterTest, SimpleEffectTreePath) {
   setBodyInnerHTML("<div id='effect' style='opacity: 0.9;'></div>");
   LayoutObject* effectObject =
       document().getElementById("effect")->layoutObject();
   const auto* effectObjectProperties = effectObject->paintProperties();
-  String effectPathAsString =
-      effectPaintPropertyPathAsString(effectObjectProperties->effect());
+  String effectPathAsString = effectObjectProperties->effect()->toTreeString();
   EXPECT_THAT(effectPathAsString.ascii().data(),
               testing::MatchesRegex("root .* opacity.*"
                                     "  .* opacity.*"));
 }
 
 TEST_P(PaintPropertyTreePrinterTest, SimpleScrollTreePath) {
   setBodyInnerHTML(
       "<div id='scroll' style='overflow: scroll; height: 100px;'>"
       "  <div id='forceScroll' style='height: 4000px;'></div>"
       "</div>");
   LayoutObject* scrollObject =
       document().getElementById("scroll")->layoutObject();
   const auto* scrollObjectProperties = scrollObject->paintProperties();
-  String scrollPathAsString =
-      scrollPaintPropertyPathAsString(scrollObjectProperties->scroll());
+  String scrollPathAsString = scrollObjectProperties->scroll()->toTreeString();
   EXPECT_THAT(scrollPathAsString.ascii().data(),
               testing::MatchesRegex("root .* scroll.*"
                                     "  .* scroll.*"));
 }
 
 }  // namespace blink
 
-#endif
+#endif  // if DCHECK_IS_ON()