Use SVGInlineTextMetricsIterator in updateLayoutAttributes

third_party/WebKit/Source/core/layout/api/LineLayoutSVGInlineText.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 LineLayoutSVGInlineText_h
 #define LineLayoutSVGInlineText_h
 
 #include "core/layout/api/LineLayoutText.h"
 #include "core/layout/svg/LayoutSVGInlineText.h"
 
@@ skipping 50 matching lines @@
     const LayoutSVGInlineText* toSVGInlineText() const
     {
         return toLayoutSVGInlineText(layoutObject());
     }
 };
 
 class SVGInlineTextMetricsIterator {
     DISALLOW_NEW();
 public:
     SVGInlineTextMetricsIterator() { reset(LineLayoutSVGInlineText()); }
+    explicit SVGInlineTextMetricsIterator(LineLayoutSVGInlineText textLineLayout) { reset(textLineLayout); }
 
     void advanceToTextStart(LineLayoutSVGInlineText textLineLayout, unsigned startCharacterOffset)
     {
         ASSERT(textLineLayout);
         if (!m_textLineLayout || m_textLineLayout != textLineLayout) {
             reset(textLineLayout);
             ASSERT(!metricsList().isEmpty());
         }
 
         if (m_characterOffset == startCharacterOffset)
@@ skipping 35 matching lines @@
     }
 
     LineLayoutSVGInlineText m_textLineLayout;
     unsigned m_metricsListOffset;
     unsigned m_characterOffset;
 };
 
 } // namespace blink
 
 #endif // LineLayoutSVGInlineText_h