Remove unsafe getFontMetrics methods

third_party/WebKit/Source/core/paint/EllipsisBoxPainter.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 "core/paint/EllipsisBoxPainter.h"
 
 #include "core/layout/TextRunConstructor.h"
 #include "core/layout/api/LineLayoutItem.h"
 #include "core/layout/api/SelectionState.h"
 #include "core/layout/line/EllipsisBox.h"
@@ skipping 40 matching lines @@
   boxOrigin.moveBy(paintOffset);
   LayoutRect boxRect(boxOrigin,
                      LayoutSize(m_ellipsisBox.logicalWidth(),
                                 m_ellipsisBox.virtualLogicalHeight()));
 
   GraphicsContextStateSaver stateSaver(context);
   if (!m_ellipsisBox.isHorizontal())
     context.concatCTM(TextPainter::rotation(boxRect, TextPainter::Clockwise));
 
   const Font& font = style.font();
+  const SimpleFontData* fontData = font.primaryFont();
+  DCHECK(fontData);
+  if (!fontData)
+    return;
 
   TextPainter::Style textStyle = TextPainter::textPaintingStyle(
       m_ellipsisBox.getLineLayoutItem(), style, paintInfo);
   TextRun textRun = constructTextRun(font, m_ellipsisBox.ellipsisStr(), style,
                                      TextRun::AllowTrailingExpansion);
   LayoutPoint textOrigin(boxOrigin.x(),
-                         boxOrigin.y() + font.getFontMetrics().ascent());
+                         boxOrigin.y() + fontData->getFontMetrics().ascent());
   TextPainter textPainter(context, font, textRun, textOrigin, boxRect,
                           m_ellipsisBox.isHorizontal());
   textPainter.paint(0, m_ellipsisBox.ellipsisStr().length(),
                     m_ellipsisBox.ellipsisStr().length(), textStyle);
 }
 
 }  // namespace blink