Refactor the Heap into ThreadHeap to prepare for per thread heaps

third_party/WebKit/Source/core/css/CSSStyleSheetResourceTest.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 "core/fetch/CSSStyleSheetResource.h"
 
 #include "core/css/CSSCrossfadeValue.h"
 #include "core/css/CSSImageValue.h"
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/css/CSSProperty.h"
@@ skipping 95 matching lines @@
         memoryCache()->update(imageResource.get(), imageResource->size(), imageResource->size(), false);
         if (!memoryCache()->isInSameLRUListForTest(cssResource.get(), imageResource.get())) {
             // We assume that the LRU list is determined by |size / accessCount|.
             for (size_t i = 0; i < cssResource->size() + 1; ++i)
                 memoryCache()->update(cssResource.get(), cssResource->size(), cssResource->size(), true);
             for (size_t i = 0; i < imageResource->size() + 1; ++i)
                 memoryCache()->update(imageResource.get(), imageResource->size(), imageResource->size(), true);
         }
         ASSERT_TRUE(memoryCache()->isInSameLRUListForTest(cssResource.get(), imageResource.get()));
     }
-    Heap::collectAllGarbage();
+    ThreadHeap::collectAllGarbage();
     // This operation should not lead to crash!
     memoryCache()->pruneAll();
 }
 
 TEST_F(CSSStyleSheetResourceTest, DuplicateResourceNotCached)
 {
     const char url[] = "https://localhost/style.css";
     KURL imageURL(KURL(), url);
     KURL cssURL(KURL(), url);
 
@@ skipping 18 matching lines @@
     // Verify that the cache will have a mapping for |imageResource| at |url|.
     // The underlying |contents| for the stylesheet resource must have a
     // matching cache status.
     ASSERT_TRUE(memoryCache()->contains(imageResource.get()));
     ASSERT_FALSE(memoryCache()->contains(cssResource.get()));
     ASSERT_FALSE(contents->isInMemoryCache());
 }
 
 } // namespace
 } // namespace blink