Adds RefPtr::leakRef method to allow raw pointers that prevent destruct.

third_party/WebKit/Source/wtf/RefPtrTest.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 "wtf/RefPtr.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/StringImpl.h"
 
 namespace WTF {
 
 TEST(RefPtrTest, Basic) {
   RefPtr<StringImpl> string;
   EXPECT_TRUE(!string);
   string = StringImpl::create("test");
   EXPECT_TRUE(!!string);
   string.clear();
   EXPECT_TRUE(!string);
 }
 
+TEST(RefPtrTest, LeakRef) {
+  RefPtr<StringImpl> string = StringImpl::create("test");
+  EXPECT_TRUE(string);
+  EXPECT_TRUE(string->hasOneRef());
+  StringImpl* raw = string.get();
+  StringImpl* leaked = string.leakRef();
+  EXPECT_TRUE(!string);
+  EXPECT_TRUE(leaked);
+  EXPECT_TRUE(leaked->hasOneRef());
+  EXPECT_EQ(raw, leaked);
+  leaked->deref();

[Bugs Nash, 2017/02/20 01:53:38]

Needed to add this line to prevent memory leak which was causing asan bot to
fail. PTAnotherL?

+}
+
 TEST(RefPtrTest, MoveAssignmentOperator) {
   RefPtr<StringImpl> a = StringImpl::create("a");
   RefPtr<StringImpl> b = StringImpl::create("b");
   b = std::move(a);
   EXPECT_TRUE(!!b);
   EXPECT_TRUE(!a);
 }
 
 class RefCountedClass : public RefCounted<RefCountedClass> {};
 
 TEST(RefPtrTest, ConstObject) {
   // This test is only to ensure we force the compilation of a const RefCounted
   // object to ensure the generated code compiles.
   RefPtr<const RefCountedClass> ptrToConst = adoptRef(new RefCountedClass());
 }
 
 }  // namespace WTF