Replace OwnPtr with WTF::Optional for optional recorders.

Source/core/paint/InlineTextBoxPainter.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/InlineTextBoxPainter.h"
 
 #include "core/dom/DocumentMarkerController.h"
 #include "core/dom/RenderedDocumentMarker.h"
 #include "core/editing/CompositionUnderline.h"
 #include "core/editing/CompositionUnderlineRangeFilter.h"
 #include "core/editing/Editor.h"
 #include "core/editing/InputMethodController.h"
 #include "core/frame/LocalFrame.h"
 #include "core/layout/LayoutBlock.h"
 #include "core/layout/LayoutTextCombine.h"
 #include "core/layout/LayoutTheme.h"
 #include "core/layout/line/InlineTextBox.h"
 #include "core/paint/BoxPainter.h"
 #include "core/paint/PaintInfo.h"
 #include "core/paint/TextPainter.h"
 #include "platform/graphics/paint/DrawingRecorder.h"
+#include "wtf/Optional.h"
 
 namespace blink {
 
 typedef WTF::HashMap<const InlineTextBox*, TextBlobPtr> InlineTextBoxBlobCacheMap;
 static InlineTextBoxBlobCacheMap* gTextBlobCache;
 
 static const int misspellingLineThickness = 3;
 
 void InlineTextBoxPainter::removeFromTextBlobCache(InlineTextBox& inlineTextBox)
 {
@@ skipping 42 matching lines @@
         // When only painting the selection, don't bother to paint if there is none.
         return;
     }
 
     // Determine whether or not we have composition underlines to draw.
     bool containsComposition = m_inlineTextBox.layoutObject().node() && m_inlineTextBox.layoutObject().frame()->inputMethodController().compositionNode() == m_inlineTextBox.layoutObject().node();
     bool useCustomUnderlines = containsComposition && m_inlineTextBox.layoutObject().frame()->inputMethodController().compositionUsesCustomUnderlines();
 
     // The text clip phase already has a DrawingRecorder. Text clips are initiated only in BoxPainter::paintLayerExtended, which is already
     // within a DrawingRecorder.
-    OwnPtr<DrawingRecorder> drawingRecorder;
+    Optional<DrawingRecorder> drawingRecorder;
     if (RuntimeEnabledFeatures::slimmingPaintEnabled() && paintInfo.phase != PaintPhaseTextClip) {
         LayoutRect paintRect(m_inlineTextBox.logicalRectToPhysicalRect(logicalVisualOverflow));
         if (paintInfo.phase != PaintPhaseSelection && (haveSelection || containsComposition || paintsMarkerHighlights(m_inlineTextBox.layoutObject())))
             paintRect.unite(m_inlineTextBox.localSelectionRect(m_inlineTextBox.start(), m_inlineTextBox.start() + m_inlineTextBox.len()));
         paintRect.moveBy(adjustedPaintOffset);
-        drawingRecorder = adoptPtr(new DrawingRecorder(*paintInfo.context, m_inlineTextBox, DisplayItem::paintPhaseToDrawingType(paintInfo.phase), paintRect));
+        drawingRecorder.emplace(*paintInfo.context, m_inlineTextBox, DisplayItem::paintPhaseToDrawingType(paintInfo.phase), paintRect);
         if (drawingRecorder->canUseCachedDrawing())
             return;
     }
 
     if (m_inlineTextBox.truncation() != cNoTruncation) {
         if (m_inlineTextBox.layoutObject().containingBlock()->style()->isLeftToRightDirection() != m_inlineTextBox.isLeftToRightDirection()) {
             // Make the visible fragment of text hug the edge closest to the rest of the run by moving the origin
             // at which we start drawing text.
             // e.g. In the case of LTR text truncated in an RTL Context, the correct behavior is:
             // |Hello|CBA| -> |...He|CBA|
@@ skipping 707 matching lines @@
             LayoutTheme::theme().platformActiveTextSearchHighlightColor() :
             LayoutTheme::theme().platformInactiveTextSearchHighlightColor();
         GraphicsContextStateSaver stateSaver(*pt);
         pt->clip(FloatRect(boxOrigin.x().toFloat(), (boxOrigin.y() - deltaY).toFloat(), m_inlineTextBox.logicalWidth().toFloat(), selHeight));
         pt->drawHighlightForText(font, run, FloatPoint(boxOrigin.x().toFloat(), (boxOrigin.y() - deltaY).toFloat()), selHeight, color, sPos, ePos);
     }
 }
 
 
 } // namespace blink