TextIteratorAlgorithm should not force layout update in constructor.

third_party/WebKit/Source/core/editing/EditingTestBase.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/EditingTestBase.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/Range.h"
 #include "core/dom/Text.h"
 #include "core/frame/FrameView.h"
@@ skipping 17 matching lines @@
 
 void EditingTestBase::SetUp()
 {
     m_dummyPageHolder = DummyPageHolder::create(IntSize(800, 600));
 }
 
 PassRefPtrWillBeRawPtr<ShadowRoot> EditingTestBase::createShadowRootForElementWithIDAndSetInnerHTML(TreeScope& scope, const char* hostElementID, const char* shadowRootContent)
 {
     RefPtrWillBeRawPtr<ShadowRoot> shadowRoot = scope.getElementById(AtomicString::fromUTF8(hostElementID))->createShadowRootInternal(ShadowRootType::V0, ASSERT_NO_EXCEPTION);
     shadowRoot->setInnerHTML(String::fromUTF8(shadowRootContent), ASSERT_NO_EXCEPTION);
+    scope.document().view()->updateAllLifecyclePhases();
     return shadowRoot.release();
 }
 
 void EditingTestBase::setBodyContent(const char* bodyContent)
 {
     document().body()->setInnerHTML(String::fromUTF8(bodyContent), ASSERT_NO_EXCEPTION);
+    updateLayoutAndStyleForPainting();
 }
 
 PassRefPtrWillBeRawPtr<ShadowRoot> EditingTestBase::setShadowContent(const char* shadowContent, const char* host)
 {
     RefPtrWillBeRawPtr<ShadowRoot> shadowRoot = createShadowRootForElementWithIDAndSetInnerHTML(document(), host, shadowContent);
-    document().updateDistribution();
+    updateLayoutAndStyleForPainting();
     return shadowRoot.release();
 }
 
 void EditingTestBase::updateLayoutAndStyleForPainting()
 {
     document().view()->updateAllLifecyclePhases();
 }
 
 } // namespace blink