Make RenderedRectsForMarkers() to ignore disconnected nodes.

third_party/WebKit/Source/core/editing/VisibleUnitsTest.cpp

 // Copyright 2015 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/editing/VisibleUnits.h"
 
 #include <ostream>  // NOLINT
 #include "bindings/core/v8/V8BindingForTesting.h"
 #include "core/dom/Text.h"
 #include "core/editing/EditingTestBase.h"
@@ skipping 1959 matching lines @@
 TEST_F(VisibleUnitsTest,
        canonicalizationWithCollapsedSpaceAndIsolatedCombiningCharacter) {
   setBodyContent("<p>  &#x20E3;</p>");  // Leading space is necessary
 
   Node* paragraph = document().querySelector("p");
   Node* text = paragraph->firstChild();
   Position start = canonicalPositionOf(Position::beforeNode(paragraph));
   EXPECT_EQ(Position(text, 2), start);
 }
 
+TEST_F(VisibleUnitsTest, boundingBoxWithEphemeralRange) {
+  const char* bodyContent =
+      "<p id='host'>1"
+      "<b id='one'>22</b>"
+      "<b id='two'>333</b>"
+      "<b id='three'>4444</b>"
+      "</p>";
+  setBodyContent(bodyContent);
+
+  const Position startPosition(document().getElementById("one"), 0);
+  const Position endPosition(document().getElementById("three"), 0);
+  Range* range = Range::create(document());
+  range->selectNode(document().body());
+  range->setStart(document().getElementById("one"), 0,
+                  IGNORE_EXCEPTION_FOR_TESTING);
+  range->setEnd(document().getElementById("three"), 0,
+                IGNORE_EXCEPTION_FOR_TESTING);
+  const EphemeralRange ephemeralRange(startPosition, endPosition);
+  EXPECT_EQ(range->boundingBox(), boundingBox(ephemeralRange));
+}
+
+TEST_F(VisibleUnitsTest, boundingBoxWithEphemeralRangeInFlatTree) {
+  const char* bodyContent =
+      "<p id='host'>1"
+      "<b id='one'>22</b>"
+      "<b id='two'>333</b>"
+      "<b id='three'>4444</b>"
+      "</p>";
+  setBodyContent(bodyContent);
+
+  const PositionInFlatTree startPosition(document().getElementById("one"), 0);
+  const PositionInFlatTree endPosition(document().getElementById("three"), 0);
+  Range* range = Range::create(document());
+  range->selectNode(document().body());
+  range->setStart(document().getElementById("one"), 0,
+                  IGNORE_EXCEPTION_FOR_TESTING);
+  range->setEnd(document().getElementById("three"), 0,
+                IGNORE_EXCEPTION_FOR_TESTING);
+  const EphemeralRangeInFlatTree ephemeralRangeInFlatTree(startPosition,
+                                                          endPosition);
+  EXPECT_EQ(range->boundingBox(), boundingBox(ephemeralRangeInFlatTree));
+}
+
 }  // namespace blink