Find In Page doesn't work properly when " " is searched

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 "config.h"
 #include "web/TextFinder.h"
 
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "core/dom/Document.h"
 #include "core/dom/NodeList.h"
@@ skipping 377 matching lines @@
 
     EXPECT_EQ(3, textFinder().totalMatchCount());
     WebVector<WebFloatRect> matchRects;
     textFinder().findMatchRects(matchRects);
     ASSERT_EQ(3u, matchRects.size());
     EXPECT_EQ(findInPageRect(textNode, 0, textNode, 2), matchRects[0]);
     EXPECT_EQ(findInPageRect(textNode, 2, textNode, 4), matchRects[1]);
     EXPECT_EQ(findInPageRect(textNode, 4, textNode, 6), matchRects[2]);
 }
 
+TEST_F(TextFinderTest, WhitespaceMatches)
+{
+    document().body()->setInnerHTML("<span>Some text </span> <input type='button' value='Button text'/><span>Some more text</span>", ASSERT_NO_EXCEPTION);
+
+    int identifier = 0;
+    WebString searchText(String(" "));
+    WebFindOptions findOptions; // Default.
+
+    textFinder().resetMatchCount();
+    textFinder().scopeStringMatches(identifier, searchText, findOptions, true);
+    while (textFinder().scopingInProgress())
+        runPendingTasks();
+
+    EXPECT_EQ(5, textFinder().totalMatchCount());
+}
+
 class TextFinderFakeTimerTest : public TextFinderTest {
 protected:
     // A simple platform that mocks out the clock.
     class TimeProxyPlatform : public TestingPlatformSupport {
     public:
         TimeProxyPlatform()
             : m_timeCounter(m_oldPlatform->currentTimeSeconds())
         {
         }
 
@@ skipping 48 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