[LayoutNG] Switch NGConstraintSpace to being RefCounted.

third_party/WebKit/Source/core/layout/ng/ng_length_utils_test.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 "core/layout/ng/ng_length_utils.h"
 
 #include "core/layout/ng/ng_box_fragment.h"
 #include "core/layout/ng/ng_constraint_space.h"
 #include "core/layout/ng/ng_constraint_space_builder.h"
 #include "core/layout/ng/ng_fragment_builder.h"
 #include "core/layout/ng/ng_physical_box_fragment.h"
 #include "core/layout/ng/ng_units.h"
 #include "core/style/ComputedStyle.h"
 #include "platform/CalculationValue.h"
 #include "platform/LayoutUnit.h"
 #include "platform/Length.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 namespace {
 
 class NGLengthUtilsTest : public ::testing::Test {
  protected:
   void SetUp() override { style_ = ComputedStyle::create(); }
 
-  static NGConstraintSpace* ConstructConstraintSpace(int inline_size,
-                                                     int block_size,
-                                                     bool fixed_inline = false,
-                                                     bool fixed_block = false) {
+  static RefPtr<NGConstraintSpace> ConstructConstraintSpace(
+      int inline_size,
+      int block_size,
+      bool fixed_inline = false,
+      bool fixed_block = false) {
     return NGConstraintSpaceBuilder(kHorizontalTopBottom)
         .SetAvailableSize(
             NGLogicalSize(LayoutUnit(inline_size), LayoutUnit(block_size)))
         .SetPercentageResolutionSize(
             NGLogicalSize(LayoutUnit(inline_size), LayoutUnit(block_size)))
         .SetIsFixedSizeInline(fixed_inline)
         .SetIsFixedSizeBlock(fixed_block)
         .ToConstraintSpace(kHorizontalTopBottom);
   }
 
   LayoutUnit ResolveInlineLength(
       const Length& length,
       LengthResolveType type = LengthResolveType::kContentSize,
       const WTF::Optional<MinAndMaxContentSizes>& sizes = WTF::nullopt) {
-    NGConstraintSpace* constraintSpace = ConstructConstraintSpace(200, 300);
+    RefPtr<NGConstraintSpace> constraintSpace =
+        ConstructConstraintSpace(200, 300);
     return ::blink::ResolveInlineLength(*constraintSpace, *style_, sizes,
                                         length, type);
   }
 
   LayoutUnit ResolveBlockLength(
       const Length& length,
       LengthResolveType type = LengthResolveType::kContentSize,
       LayoutUnit contentSize = LayoutUnit()) {
-    NGConstraintSpace* constraintSpace = ConstructConstraintSpace(200, 300);
+    RefPtr<NGConstraintSpace> constraintSpace =
+        ConstructConstraintSpace(200, 300);
     return ::blink::ResolveBlockLength(*constraintSpace, *style_, length,
                                        contentSize, type);
   }
 
   LayoutUnit ComputeInlineSizeForFragment(
-      const NGConstraintSpace* constraintSpace = ConstructConstraintSpace(200,
-                                                                          300),
+      RefPtr<const NGConstraintSpace> constraintSpace =
+          ConstructConstraintSpace(200, 300),
       const MinAndMaxContentSizes& sizes = MinAndMaxContentSizes()) {
     return ::blink::ComputeInlineSizeForFragment(*constraintSpace, *style_,
                                                  sizes);
   }
 
   LayoutUnit ComputeBlockSizeForFragment(
-      const NGConstraintSpace* constraintSpace = ConstructConstraintSpace(200,
-                                                                          300),
+      RefPtr<const NGConstraintSpace> constraintSpace =
+          ConstructConstraintSpace(200, 300),
       LayoutUnit contentSize = LayoutUnit()) {
     return ::blink::ComputeBlockSizeForFragment(*constraintSpace, *style_,
                                                 contentSize);
   }
 
   RefPtr<ComputedStyle> style_;
 };
 
 TEST_F(NGLengthUtilsTest, testResolveInlineLength) {
   EXPECT_EQ(LayoutUnit(60), ResolveInlineLength(Length(30, Percent)));
@@ skipping 127 matching lines @@
   style_->setLogicalWidth(Length(Auto));
   EXPECT_EQ(LayoutUnit(200), ComputeInlineSizeForFragment());
 
   style_->setLogicalWidth(Length(FillAvailable));
   EXPECT_EQ(LayoutUnit(200), ComputeInlineSizeForFragment());
 
   style_->setLogicalWidth(Length(CalculationValue::create(
       PixelsAndPercent(100, -10), ValueRangeNonNegative)));
   EXPECT_EQ(LayoutUnit(80), ComputeInlineSizeForFragment());
 
-  NGConstraintSpace* constraintSpace =
+  RefPtr<NGConstraintSpace> constraintSpace =
       ConstructConstraintSpace(120, 120, true, true);
   style_->setLogicalWidth(Length(150, Fixed));
   EXPECT_EQ(LayoutUnit(120), ComputeInlineSizeForFragment(constraintSpace));
 
   style_->setLogicalWidth(Length(200, Fixed));
   style_->setMaxWidth(Length(80, Percent));
   EXPECT_EQ(LayoutUnit(160), ComputeInlineSizeForFragment());
 
   style_->setLogicalWidth(Length(100, Fixed));
   style_->setMinWidth(Length(80, Percent));
@@ skipping 49 matching lines @@
             ComputeBlockSizeForFragment(ConstructConstraintSpace(200, 300),
                                         LayoutUnit(120)));
 
   style_->setLogicalHeight(Length(FillAvailable));
   EXPECT_EQ(LayoutUnit(300), ComputeBlockSizeForFragment());
 
   style_->setLogicalHeight(Length(CalculationValue::create(
       PixelsAndPercent(100, -10), ValueRangeNonNegative)));
   EXPECT_EQ(LayoutUnit(70), ComputeBlockSizeForFragment());
 
-  NGConstraintSpace* constraintSpace =
+  RefPtr<NGConstraintSpace> constraintSpace =
       ConstructConstraintSpace(200, 200, true, true);
   style_->setLogicalHeight(Length(150, Fixed));
   EXPECT_EQ(LayoutUnit(200), ComputeBlockSizeForFragment(constraintSpace));
 
   style_->setLogicalHeight(Length(300, Fixed));
   style_->setMaxHeight(Length(80, Percent));
   EXPECT_EQ(LayoutUnit(240), ComputeBlockSizeForFragment());
 
   style_->setLogicalHeight(Length(100, Fixed));
   style_->setMinHeight(Length(80, Percent));
@@ skipping 37 matching lines @@
             ComputeBlockSizeForFragment(ConstructConstraintSpace(200, -1),
                                         LayoutUnit(120)));
 }
 
 TEST_F(NGLengthUtilsTest, testMargins) {
   style_->setMarginTop(Length(10, Percent));
   style_->setMarginRight(Length(52, Fixed));
   style_->setMarginBottom(Length(Auto));
   style_->setMarginLeft(Length(11, Percent));
 
-  NGConstraintSpace* constraintSpace(ConstructConstraintSpace(200, 300));
+  RefPtr<NGConstraintSpace> constraintSpace(ConstructConstraintSpace(200, 300));
 
   NGBoxStrut margins = ComputeMargins(
       *constraintSpace, *style_, kHorizontalTopBottom, TextDirection::kLtr);
 
   EXPECT_EQ(LayoutUnit(20), margins.block_start);
   EXPECT_EQ(LayoutUnit(52), margins.inline_end);
   EXPECT_EQ(LayoutUnit(), margins.block_end);
   EXPECT_EQ(LayoutUnit(22), margins.inline_start);
 }
 
 TEST_F(NGLengthUtilsTest, testBorders) {
   style_->setBorderTopWidth(1);
   style_->setBorderRightWidth(2);
   style_->setBorderBottomWidth(3);
   style_->setBorderLeftWidth(4);
   style_->setBorderTopStyle(BorderStyleSolid);
   style_->setBorderRightStyle(BorderStyleSolid);
   style_->setBorderBottomStyle(BorderStyleSolid);
   style_->setBorderLeftStyle(BorderStyleSolid);
   style_->setWritingMode(WritingMode::kVerticalLr);
 
-  NGConstraintSpace* constraint_space(ConstructConstraintSpace(200, 300));
+  RefPtr<NGConstraintSpace> constraint_space(
+      ConstructConstraintSpace(200, 300));
 
   NGBoxStrut borders = ComputeBorders(*constraint_space, *style_);
 
   EXPECT_EQ(LayoutUnit(4), borders.block_start);
   EXPECT_EQ(LayoutUnit(3), borders.inline_end);
   EXPECT_EQ(LayoutUnit(2), borders.block_end);
   EXPECT_EQ(LayoutUnit(1), borders.inline_start);
 }
 
 TEST_F(NGLengthUtilsTest, testPadding) {
   style_->setPaddingTop(Length(10, Percent));
   style_->setPaddingRight(Length(52, Fixed));
   style_->setPaddingBottom(Length(Auto));
   style_->setPaddingLeft(Length(11, Percent));
   style_->setWritingMode(WritingMode::kVerticalRl);
 
-  NGConstraintSpace* constraintSpace(ConstructConstraintSpace(200, 300));
+  RefPtr<NGConstraintSpace> constraintSpace(ConstructConstraintSpace(200, 300));
 
   NGBoxStrut padding = ComputePadding(*constraintSpace, *style_);
 
   EXPECT_EQ(LayoutUnit(52), padding.block_start);
   EXPECT_EQ(LayoutUnit(), padding.inline_end);
   EXPECT_EQ(LayoutUnit(22), padding.block_end);
   EXPECT_EQ(LayoutUnit(20), padding.inline_start);
 }
 
 TEST_F(NGLengthUtilsTest, testAutoMargins) {
   style_->setMarginRight(Length(Auto));
   style_->setMarginLeft(Length(Auto));
 
   LayoutUnit kInlineSize = LayoutUnit(150);
-  NGConstraintSpace* constraint_space(ConstructConstraintSpace(200, 300));
+  RefPtr<NGConstraintSpace> constraint_space(
+      ConstructConstraintSpace(200, 300));
 
   NGBoxStrut margins;
   ApplyAutoMargins(*constraint_space, *style_, kInlineSize, &margins);
 
   EXPECT_EQ(LayoutUnit(), margins.block_start);
   EXPECT_EQ(LayoutUnit(), margins.block_end);
   EXPECT_EQ(LayoutUnit(25), margins.inline_start);
   EXPECT_EQ(LayoutUnit(25), margins.inline_end);
 
   style_->setMarginLeft(Length(0, Fixed));
@@ skipping 80 matching lines @@
   EXPECT_EQ(125, GetUsedColumnWidth(4, 100, 10, 530));
   EXPECT_EQ(4, GetUsedColumnCount(4, 100, 10, 530));
   EXPECT_EQ(100, GetUsedColumnWidth(6, 100, 10, 540));
   EXPECT_EQ(5, GetUsedColumnCount(6, 100, 10, 540));
   EXPECT_EQ(100, GetUsedColumnWidth(0, 100, 10, 540));
   EXPECT_EQ(5, GetUsedColumnCount(0, 100, 10, 540));
 }
 
 }  // namespace
 }  // namespace blink