Revert of Move collectGarbage* methods to ThreadState

third_party/WebKit/Source/core/dom/DocumentTest.cpp

 /*
  * Copyright (c) 2014, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 32 matching lines @@
 #include <memory>
 
 namespace blink {
 
 class DocumentTest : public ::testing::Test {
 protected:
     void SetUp() override;
 
     void TearDown() override
     {
-        ThreadState::current()-> collectAllGarbage();
+        ThreadHeap::collectAllGarbage();
     }
 
     Document& document() const { return m_dummyPageHolder->document(); }
     Page& page() const { return m_dummyPageHolder->page(); }
 
     void setHtmlInnerHTML(const char*);
 
 private:
     std::unique_ptr<DummyPageHolder> m_dummyPageHolder;
 };
@@ skipping 228 matching lines @@
     EXPECT_TRUE(document().getSecurityOrigin()->isPotentiallyTrustworthy());
 
     origin = SecurityOrigin::createFromString("https://example.test");
     document().setSecurityOrigin(origin);
     document().enforceSandboxFlags(mask);
     EXPECT_TRUE(document().getSecurityOrigin()->isUnique());
     EXPECT_TRUE(document().getSecurityOrigin()->isPotentiallyTrustworthy());
 }
 
 } // namespace blink