Merge 95301 - cachedFont not getting updated for inline SVG text.

Source/WebCore/rendering/svg/RenderSVGInlineText.cpp

Index: Source/WebCore/rendering/svg/RenderSVGInlineText.cpp
===================================================================
--- Source/WebCore/rendering/svg/RenderSVGInlineText.cpp	(revision 96026)
+++ Source/WebCore/rendering/svg/RenderSVGInlineText.cpp	(working copy)
@@ -87,8 +87,6 @@
         // The text metrics may be influenced by style changes.
         if (RenderSVGText* textRenderer = RenderSVGText::locateRenderSVGTextAncestor(this))
             textRenderer->setNeedsPositioningValuesUpdate();
-
-        updateScaledFont();
     }
 
     const RenderStyle* newStyle = style();
@@ -223,6 +221,19 @@
     return createVisiblePosition(offset + closestDistanceBox->start(), offset > 0 ? VP_UPSTREAM_IF_POSSIBLE : DOWNSTREAM);
 }
 
+void RenderSVGInlineText::setStyle(PassRefPtr<RenderStyle> style)
+{
+    RenderText::setStyle(style);
+
+    // The cached scaledFont needs to be updated on every style set call. It
+    // is not similar to m_style which can get derived from parent's style and
+    // hence will get automatically updated on ancestor's style change. This is
+    // required, otherwise we will maintain stale font list in cached scaledFont
+    // when custom fonts are retired on Document::recalcStyle. See webkit bug
+    // https://bugs.webkit.org/show_bug.cgi?id=68060.
+    updateScaledFont();
+}
+
 void RenderSVGInlineText::updateScaledFont()
 {
     computeNewScaledFontForStyle(this, style(), m_scalingFactor, m_scaledFont);