Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/css/resolver/MatchResultTest.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/css/resolver/MatchResult.h"
 
 #include "core/css/StylePropertySet.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
 
 class MatchResultTest : public ::testing::Test {
 protected:
     void SetUp() override;
 
     const StylePropertySet* propertySet(unsigned index) const
     {
         return propertySets[index].get();
     }
 
 private:
-    WillBePersistentHeapVector<RefPtrWillBeMember<MutableStylePropertySet>, 6> propertySets;
+    PersistentHeapVector<Member<MutableStylePropertySet>, 6> propertySets;
 };
 
 void MatchResultTest::SetUp()
 {
     for (unsigned i = 0; i < 6; i++)
         propertySets.append(MutableStylePropertySet::create(HTMLQuirksMode));
 }
 
 void testMatchedPropertiesRange(const MatchedPropertiesRange& range, int expectedLength, const StylePropertySet** expectedSets)
 {
@@ skipping 130 matching lines @@
 
     ++iter;
     EXPECT_NE(important.end(), iter);
     testMatchedPropertiesRange(*iter, 2, authorSets);
 
     ++iter;
     EXPECT_EQ(important.end(), iter);
 }
 
 } // namespace blink