Use SkPictureBuilder in SVGShapePainter, and generalize SkPictureBuilder.

Source/platform/graphics/paint/DisplayItemListContextRecorder.h

-// Copyright 2015 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.
-
-#ifndef DisplayItemListContextRecorder_h
-#define DisplayItemListContextRecorder_h
-
-#include "platform/RuntimeEnabledFeatures.h"
-#include "platform/graphics/GraphicsContext.h"
-#include "platform/graphics/paint/DisplayItemList.h"
-#include "wtf/OwnPtr.h"
-
-namespace blink {
-
-class DisplayItemListContextRecorder {
-    WTF_MAKE_NONCOPYABLE(DisplayItemListContextRecorder);
-    STACK_ALLOCATED();
-public:
-    DisplayItemListContextRecorder(GraphicsContext& context)
-        : m_initialContext(context)
-    {
-        if (!RuntimeEnabledFeatures::slimmingPaintEnabled())
-            return;
-
-        m_displayItemList = DisplayItemList::create();
-        m_displayItemListContext = adoptPtr(new GraphicsContext(m_displayItemList.get(),
-            context.contextDisabled() ? GraphicsContext::FullyDisabled : GraphicsContext::NothingDisabled));
-        m_displayItemListContext->setDeviceScaleFactor(context.deviceScaleFactor());
-        m_displayItemListContext->setPrinting(context.printing());
-    }
-
-    ~DisplayItemListContextRecorder()
-    {
-        if (!RuntimeEnabledFeatures::slimmingPaintEnabled())
-            return;
-
-        ASSERT(m_displayItemList);
-        m_displayItemList->commitNewDisplayItemsAndReplay(m_initialContext);
-    }
-
-    GraphicsContext& context() const { return m_displayItemList ? *m_displayItemListContext : m_initialContext; }
-
-private:
-    GraphicsContext& m_initialContext;
-    OwnPtr<DisplayItemList> m_displayItemList;
-    OwnPtr<GraphicsContext> m_displayItemListContext;
-};
-
-} // namespace blink
-
-#endif // DisplayItemListContextRecorder_h