Enable fast/images with slimming paint

Source/core/paint/ClipRecorderTest.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 "config.h"
-#include "core/paint/ClipRecorder.h"
-
-#include "core/rendering/RenderView.h"
-#include "core/rendering/RenderingTestHelper.h"
-#include "core/rendering/compositing/RenderLayerCompositor.h"
-#include "platform/graphics/GraphicsContext.h"
-#include <gtest/gtest.h>
-
-namespace blink {
-namespace {
-
-class ClipRecorderTest : public RenderingTest {
-public:
-    ClipRecorderTest() : m_renderView(nullptr) { }
-
-protected:
-    RenderView* renderView() { return m_renderView; }
-
-private:
-    virtual void SetUp() override
-    {
-        RuntimeEnabledFeatures::setSlimmingPaintEnabled(true);
-
-        RenderingTest::SetUp();
-
-        m_renderView = document().view()->renderView();
-        ASSERT_TRUE(m_renderView);
-    }
-
-    RenderView* m_renderView;
-};
-
-void drawClip(GraphicsContext* context, RenderView* renderer, PaintPhase phase, const FloatRect& bound)
-{
-    IntRect rect(1, 1, 9, 9);
-    ClipRect clipRect(rect);
-    ClipRecorder clipRecorder(renderer->compositor()->rootRenderLayer()->renderer(), context, DisplayItem::ClipLayerForeground, clipRect, 0, LayoutPoint(), PaintLayerFlags());
-}
-
-TEST_F(ClipRecorderTest, ClipRecorderTest_Single)
-{
-    GraphicsContext* context = new GraphicsContext(nullptr);
-    FloatRect bound = renderView()->viewRect();
-    EXPECT_EQ((size_t)0, renderView()->viewDisplayList().paintList().size());
-
-    drawClip(context, renderView(), PaintPhaseForeground, bound);
-    EXPECT_EQ((size_t)2, renderView()->viewDisplayList().paintList().size());
-}
-
-}
-}