third_party/WebKit/Source/platform/fonts/Font.cpp - Issue 2020423002: Guard against invalid glyph shaping results

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Unified Diff: third_party/WebKit/Source/platform/fonts/Font.cpp

Issue 2020423002: Guard against invalid glyph shaping results (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@2743

Patch Set: Created 4 years, 7 months ago

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Index: third_party/WebKit/Source/platform/fonts/Font.cpp

diff --git a/third_party/WebKit/Source/platform/fonts/Font.cpp b/third_party/WebKit/Source/platform/fonts/Font.cpp

index 6eaf1399049204240cbdb01fbd0aab2fa0463d30..8e0ec9b8e3c235324b44434cc36274cc3eb6483f 100644

--- a/third_party/WebKit/Source/platform/fonts/Font.cpp

+++ b/third_party/WebKit/Source/platform/fonts/Font.cpp

@@ -767,7 +767,9 @@ Vector<CharacterRange> Font::individualCharacterRanges(const TextRun& run) const

// will be improved shaping in SVG when compared to HTML.

FontCachePurgePreventer purgePreventer;

CachingWordShaper shaper(m_fontFallbackList->shapeCache(m_fontDescription));

- return shaper.individualCharacterRanges(this, run);

+ auto ranges = shaper.individualCharacterRanges(this, run);

+ DCHECK_EQ(ranges.size(), static_cast<unsigned>(run.length()));

+ return ranges;

}

float Font::floatWidthForSimpleText(const TextRun& run, HashSet<const SimpleFontData*>* fallbackFonts, FloatRect* glyphBounds) const