Update these includes to use the new header locations

webkit/glue/regular_expression_unittest.cc

 // Copyright (c) 2011 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 "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebRegularExpression.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebString.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebTextCaseSensitivity.h"
 
 using WebKit::WebRegularExpression;
 using WebKit::WebString;
 using WebKit::WebTextCaseInsensitive;
 using WebKit::WebTextCaseSensitive;
 using WebKit::WebUChar;
 
 namespace {
 
@@ skipping 82 matching lines @@
 
   testMatches(regex, matches, arraysize(matches));
 }
 
 TEST(RegexTest, EmptyMatch) {
   WebRegularExpression regex("|x", WebTextCaseInsensitive);
   int matchedLength = 0;
   EXPECT_EQ(0, regex.match("", 0, &matchedLength));
   EXPECT_EQ(0, matchedLength);
 }