Revert of Add tests for trace wrappers

third_party/WebKit/Source/bindings/core/v8/ScriptWrappableVisitorTest.cpp

Index: third_party/WebKit/Source/bindings/core/v8/ScriptWrappableVisitorTest.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/ScriptWrappableVisitorTest.cpp b/third_party/WebKit/Source/bindings/core/v8/ScriptWrappableVisitorTest.cpp
deleted file mode 100644
index 0c9a2074d4f112f081ccc3295c41bd2f8e6b02b0..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/bindings/core/v8/ScriptWrappableVisitorTest.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-// 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 "bindings/core/v8/ScriptWrappableVisitor.h"
-
-#include "bindings/core/v8/ToV8.h"
-#include "bindings/core/v8/V8BindingForTesting.h"
-#include "bindings/core/v8/V8GCController.h"
-#include "bindings/core/v8/V8PerIsolateData.h"
-#include "core/testing/DeathAwareScriptWrappable.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace blink {
-
-static void preciselyCollectGarbage()
-{
-    ThreadState::current()->collectAllGarbage();
-}
-
-static void runV8Scavenger(v8::Isolate* isolate)
-{
-    V8GCController::collectGarbage(isolate, true);
-}
-
-static void runV8FullGc(v8::Isolate* isolate)
-{
-    V8GCController::collectGarbage(isolate, false);
-}
-
-TEST(ScriptWrappableVisitorTest, OilpanCollectObjectsNotReachableFromV8)
-{
-    V8TestingScope scope;
-    v8::Isolate* isolate = scope.isolate();
-
-    {
-        v8::HandleScope handleScope(isolate);
-        DeathAwareScriptWrappable* object = DeathAwareScriptWrappable::create();
-        DeathAwareScriptWrappable::observeDeathsOf(object);
-
-        // Creates new V8 wrapper and associates it with global scope
-        toV8(object, scope.context()->Global(), isolate);
-    }
-
-    runV8Scavenger(isolate);
-    runV8FullGc(isolate);
-    preciselyCollectGarbage();
-
-    EXPECT_TRUE(DeathAwareScriptWrappable::hasDied());
-}
-
-TEST(ScriptWrappableVisitorTest, OilpanDoesntCollectObjectsReachableFromV8)
-{
-    V8TestingScope scope;
-    v8::Isolate* isolate = scope.isolate();
-    v8::HandleScope handleScope(isolate);
-    DeathAwareScriptWrappable* object = DeathAwareScriptWrappable::create();
-    DeathAwareScriptWrappable::observeDeathsOf(object);
-
-    // Creates new V8 wrapper and associates it with global scope
-    toV8(object, scope.context()->Global(), isolate);
-
-    runV8Scavenger(isolate);
-    runV8FullGc(isolate);
-    preciselyCollectGarbage();
-
-    EXPECT_FALSE(DeathAwareScriptWrappable::hasDied());
-}
-
-TEST(ScriptWrappableVisitorTest, V8ReportsLiveObjectsDuringScavenger)
-{
-    V8TestingScope scope;
-    v8::Isolate* isolate = scope.isolate();
-    v8::HandleScope handleScope(isolate);
-    DeathAwareScriptWrappable* object = DeathAwareScriptWrappable::create();
-    DeathAwareScriptWrappable::observeDeathsOf(object);
-
-    v8::Local<v8::Value> wrapper = toV8(
-        object, scope.context()->Global(), isolate);
-    EXPECT_TRUE(wrapper->IsObject());
-    v8::Local<v8::Object> wrapperObject = wrapper->ToObject();
-    // V8 collects wrappers with unmodified maps (as they can be recreated
-    // without loosing any data if needed). We need to create some property on
-    // wrapper so V8 will not see it as unmodified.
-    EXPECT_TRUE(wrapperObject->CreateDataProperty(scope.context(), 1, wrapper).IsJust());
-
-    runV8Scavenger(isolate);
-    preciselyCollectGarbage();
-
-    EXPECT_FALSE(DeathAwareScriptWrappable::hasDied());
-}
-
-TEST(ScriptWrappableVisitorTest, V8ReportsLiveObjectsDuringFullGc)
-{
-    V8TestingScope scope;
-    v8::Isolate* isolate = scope.isolate();
-    v8::HandleScope handleScope(isolate);
-    DeathAwareScriptWrappable* object = DeathAwareScriptWrappable::create();
-    DeathAwareScriptWrappable::observeDeathsOf(object);
-
-    toV8(object, scope.context()->Global(), isolate);
-
-    runV8Scavenger(isolate);
-    runV8FullGc(isolate);
-    preciselyCollectGarbage();
-
-    EXPECT_FALSE(DeathAwareScriptWrappable::hasDied());
-}
-
-TEST(ScriptWrappableVisitorTest, OilpanClearsHeadersWhenObjectDied)
-{
-    V8TestingScope scope;
-
-    DeathAwareScriptWrappable* object = DeathAwareScriptWrappable::create();
-    ScriptWrappableVisitor* visitor =
-        V8PerIsolateData::from(scope.isolate())->scriptWrappableVisitor();
-    auto header = HeapObjectHeader::fromPayload(object);
-    visitor->getHeadersToUnmark()->append(header);
-
-    preciselyCollectGarbage();
-
-    EXPECT_FALSE(visitor->getHeadersToUnmark()->contains(header));
-    visitor->getHeadersToUnmark()->clear();
-}
-
-TEST(ScriptWrappableVisitorTest, OilpanClearsMarkingDequeWhenObjectDied)
-{
-    V8TestingScope scope;
-
-    DeathAwareScriptWrappable* object = DeathAwareScriptWrappable::create();
-    ScriptWrappableVisitor* visitor =
-        V8PerIsolateData::from(scope.isolate())->scriptWrappableVisitor();
-    visitor->pushToMarkingDeque(
-        TraceTrait<DeathAwareScriptWrappable>::markWrapper,
-        TraceTrait<DeathAwareScriptWrappable>::heapObjectHeader,
-        object);
-
-    EXPECT_EQ(visitor->getMarkingDeque()->first().rawObjectPointer(), object);
-
-    preciselyCollectGarbage();
-
-    EXPECT_EQ(visitor->getMarkingDeque()->first().rawObjectPointer(), nullptr);
-    visitor->getMarkingDeque()->clear();
-    visitor->getVerifierDeque()->clear();
-}
-
-} // namespace blink