Remove redundant String casts in tests

third_party/WebKit/Source/platform/geometry/FloatQuadTest.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 "platform/geometry/FloatQuad.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 TEST(FloatQuadTest, ToString)
 {
     FloatQuad quad(
         FloatPoint(2, 3),
         FloatPoint(5, 7),
         FloatPoint(11, 13),
         FloatPoint(17, 19));
-    EXPECT_EQ(String("2,3; 5,7; 11,13; 17,19"), quad.toString());
+    EXPECT_EQ("2,3; 5,7; 11,13; 17,19", quad.toString());
 }
 
 } // namespace blink