Add support for persisting CompositionUnderlines in InputMethodController

third_party/WebKit/Source/core/editing/CompositionUnderlineTest.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/editing/CompositionUnderline.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
 namespace {
 
 CompositionUnderline createCompositionUnderline(unsigned startOffset,
                                                 unsigned endOffset) {
   return CompositionUnderline(startOffset, endOffset, Color::transparent, false,
-                              Color::transparent);
+                              Color::transparent, false);
 }
 
 TEST(CompositionUnderlineTest, OneChar) {
   CompositionUnderline underline = createCompositionUnderline(0, 1);
   EXPECT_EQ(0u, underline.startOffset());
   EXPECT_EQ(1u, underline.endOffset());
 }
 
 TEST(CompositionUnderlineTest, MultiChar) {
   CompositionUnderline underline = createCompositionUnderline(0, 5);
@@ skipping 37 matching lines @@
 
 TEST(CompositionUnderlineTest, LastCharEndBeforeStartZeroEnd) {
   CompositionUnderline underline =
       createCompositionUnderline(std::numeric_limits<unsigned>::max(), 0);
   EXPECT_EQ(std::numeric_limits<unsigned>::max() - 1, underline.startOffset());
   EXPECT_EQ(std::numeric_limits<unsigned>::max(), underline.endOffset());
 }
 
 }  // namespace
 }  // namespace blink