Revert of Set overflow: auto in StyleResolver::styleForDocument.

third_party/WebKit/Source/web/tests/ScrollbarsTest.cpp

Index: third_party/WebKit/Source/web/tests/ScrollbarsTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/ScrollbarsTest.cpp b/third_party/WebKit/Source/web/tests/ScrollbarsTest.cpp
deleted file mode 100644
index eee9d25621738eb0c628ed40bede8ff32fd0bc23..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/web/tests/ScrollbarsTest.cpp
+++ /dev/null
@@ -1,47 +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 "core/layout/LayoutView.h"
-#include "core/paint/PaintLayerScrollableArea.h"
-#include "platform/testing/RuntimeEnabledFeaturesTestHelpers.h"
-#include "platform/testing/UnitTestHelpers.h"
-#include "public/web/WebScriptSource.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "web/WebLocalFrameImpl.h"
-#include "web/tests/sim/SimDisplayItemList.h"
-#include "web/tests/sim/SimRequest.h"
-#include "web/tests/sim/SimTest.h"
-
-namespace blink {
-
-namespace {
-
-class ScrollbarsTest : private ScopedRootLayerScrollingForTest, public SimTest {
- public:
-  ScrollbarsTest() : ScopedRootLayerScrollingForTest(true) {}
-};
-
-TEST_F(ScrollbarsTest, DocumentStyleRecalcPreservesScrollbars) {
-  v8::HandleScope handleScope(v8::Isolate::GetCurrent());
-  webView().resize(WebSize(800, 600));
-  SimRequest request("https://example.com/test.html", "text/html");
-  loadURL("https://example.com/test.html");
-  request.complete("<style> body { width: 1600px; height: 1200px; } </style>");
-  PaintLayerScrollableArea* plsa = document().layoutView()->getScrollableArea();
-
-  compositor().beginFrame();
-  ASSERT_TRUE(plsa->verticalScrollbar() && plsa->horizontalScrollbar());
-
-  // Forces recalc of LayoutView's computed style in Document::updateStyle,
-  // without invalidating layout.
-  mainFrame().executeScriptAndReturnValue(WebScriptSource(
-      "document.querySelector('style').sheet.insertRule('body {}', 1);"));
-
-  compositor().beginFrame();
-  ASSERT_TRUE(plsa->verticalScrollbar() && plsa->horizontalScrollbar());
-}
-
-}  // namespace
-
-}  // namespace blink