Don't bother layout until first navigation is done.

third_party/WebKit/Source/web/tests/TextFinderTest.cpp

 // Copyright 2014 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 "web/TextFinder.h"
 
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "core/dom/Document.h"
 #include "core/dom/NodeList.h"
 #include "core/dom/Range.h"
@@ skipping 13 matching lines @@
 #include "wtf/OwnPtr.h"
 
 using blink::testing::runPendingTasks;
 
 namespace blink {
 
 class TextFinderTest : public ::testing::Test {
 protected:
     TextFinderTest()
     {
-        m_webViewHelper.initialize();
+        // Explicitly navigate to about:blank to avoid operating on
+        // initial empty document.
+        m_webViewHelper.initializeAndLoad("about:blank");
+
         WebLocalFrameImpl& frameImpl = *m_webViewHelper.webViewImpl()->mainFrameImpl();
         frameImpl.viewImpl()->resize(WebSize(640, 480));
         frameImpl.viewImpl()->updateAllLifecyclePhases();
         m_document = PassRefPtrWillBeRawPtr<Document>(frameImpl.document());
         m_textFinder = &frameImpl.ensureTextFinder();
     }
 
     Document& document() const;
     TextFinder& textFinder() const;
 
@@ skipping 449 matching lines @@
     // There will be only one iteration before timeout, because increment
     // of the TimeProxyPlatform timer is greater than timeout threshold.
     textFinder().scopeStringMatches(identifier, searchPattern, findOptions, true);
     while (textFinder().scopingInProgress())
         runPendingTasks();
 
     EXPECT_EQ(4, textFinder().totalMatchCount());
 }
 
 } // namespace blink