Remove unsafe getFontMetrics methods

third_party/WebKit/Source/core/paint/FileUploadControlPainter.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/FileUploadControlPainter.h"
 
 #include "core/layout/LayoutButton.h"
 #include "core/layout/LayoutFileUploadControl.h"
 #include "core/layout/TextRunConstructor.h"
 #include "core/paint/LayoutObjectDrawingRecorder.h"
@@ skipping 65 matching lines @@
             toLayoutButton(button->layoutObject()))
       textY = paintOffset.y() + m_layoutFileUploadControl.borderTop() +
               m_layoutFileUploadControl.paddingTop() +
               buttonLayoutObject->baselinePosition(AlphabeticBaseline, true,
                                                    HorizontalLine,
                                                    PositionOnContainingLine);
     else
       textY = LayoutUnit(m_layoutFileUploadControl.baselinePosition(
           AlphabeticBaseline, true, HorizontalLine, PositionOnContainingLine));
     TextRunPaintInfo textRunPaintInfo(textRun);
+
+    const SimpleFontData* fontData =
+        m_layoutFileUploadControl.style()->font().primaryFont();
+    if (!fontData)
+      return;
     // FIXME: Shouldn't these offsets be rounded? crbug.com/350474
     textRunPaintInfo.bounds = FloatRect(
-        textX.toFloat(),
-        textY.toFloat() -
-            m_layoutFileUploadControl.style()->getFontMetrics().ascent(),
-        textWidth,
-        m_layoutFileUploadControl.style()->getFontMetrics().height());
+        textX.toFloat(), textY.toFloat() - fontData->getFontMetrics().ascent(),
+        textWidth, fontData->getFontMetrics().height());
 
     // Draw the filename.
     LayoutObjectDrawingRecorder recorder(
         paintInfo.context, m_layoutFileUploadControl, paintInfo.phase,
         textRunPaintInfo.bounds);
     paintInfo.context.setFillColor(
         m_layoutFileUploadControl.resolveColor(CSSPropertyColor));
     paintInfo.context.drawBidiText(
         font, textRunPaintInfo,
         FloatPoint(roundToInt(textX), roundToInt(textY)));
   }
 
   // Paint the children.
   m_layoutFileUploadControl.LayoutBlockFlow::paintObject(paintInfo,
                                                          paintOffset);
 }
 
 }  // namespace blink