[LayoutNG] Add "Control" NGInlineItemType for newlines and tabs

third_party/WebKit/Source/core/layout/ng/inline/ng_inline_node_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/inline/ng_inline_node.h"
 
 #include "core/layout/LayoutTestHelper.h"
 #include "core/layout/ng/inline/ng_inline_layout_algorithm.h"
 #include "core/layout/ng/inline/ng_physical_line_box_fragment.h"
 #include "core/layout/ng/inline/ng_physical_text_fragment.h"
@@ skipping 126 matching lines @@
   node->CollectInlines(layout_object_, layout_block_flow_);
   Vector<NGInlineItem>& items = node->Items();
   TEST_ITEM_TYPE_OFFSET(items[0], kText, 0u, 6u);
   TEST_ITEM_TYPE_OFFSET(items[1], kOpenTag, 6u, 6u);
   TEST_ITEM_TYPE_OFFSET(items[2], kText, 6u, 12u);
   TEST_ITEM_TYPE_OFFSET(items[3], kCloseTag, 12u, 12u);
   TEST_ITEM_TYPE_OFFSET(items[4], kText, 12u, 19u);
   EXPECT_EQ(5u, items.size());
 }
 
+TEST_F(NGInlineNodeTest, CollectInlinesBR) {
+  SetupHtml("t", u"<div id=t>Hello<br>World</div>");
+  NGInlineNodeForTest* node = CreateInlineNode();
+  node->CollectInlines(layout_object_, layout_block_flow_);
+  EXPECT_EQ("Hello\nWorld", node->Text());
+  Vector<NGInlineItem>& items = node->Items();
+  TEST_ITEM_TYPE_OFFSET(items[0], kText, 0u, 5u);
+  TEST_ITEM_TYPE_OFFSET(items[1], kControl, 5u, 6u);
+  TEST_ITEM_TYPE_OFFSET(items[2], kText, 6u, 11u);
+  EXPECT_EQ(3u, items.size());
+}
+
 TEST_F(NGInlineNodeTest, CollectInlinesRtlText) {
   SetupHtml("t", u"<div id=t dir=rtl>\u05E2 <span>\u05E2</span> \u05E2</div>");
   NGInlineNodeForTest* node = CreateInlineNode();
   node->CollectInlines(layout_object_, layout_block_flow_);
   EXPECT_TRUE(node->IsBidiEnabled());
   node->SegmentText();
   EXPECT_TRUE(node->IsBidiEnabled());
   Vector<NGInlineItem>& items = node->Items();
   TEST_ITEM_TYPE_OFFSET_LEVEL(items[0], kText, 0u, 2u, 1u);
   TEST_ITEM_TYPE_OFFSET_LEVEL(items[1], kOpenTag, 2u, 2u, 1u);
@@ skipping 174 matching lines @@
   MinMaxContentSize sizes = node->ComputeMinMaxContentSize();
   // |min_content| should be the width of "BC" because there is an element
   // boundary between "B" and "C" but no break opportunities.
   // TODO(kojii): min_content should be 20, but is 30 until
   // NGInlineLayoutAlgorithm implements trailing spaces correctly.
   EXPECT_EQ(30, sizes.min_content);
   EXPECT_EQ(60, sizes.max_content);
 }
 
 }  // namespace blink