Reland r172943 "Make CSSFontFace::willUseFontData() load fonts with unicode-range"

Source/platform/fonts/Font.cpp

Index: Source/platform/fonts/Font.cpp
diff --git a/Source/platform/fonts/Font.cpp b/Source/platform/fonts/Font.cpp
index 1b01d3dd1d7b24700f508152b5351068869da48d..806a5f9b8e5f6a485a5a939fa5701d66ff03e988 100644
--- a/Source/platform/fonts/Font.cpp
+++ b/Source/platform/fonts/Font.cpp
@@ -245,11 +245,11 @@ CodePath Font::codePath(const TextRun& run) const
     return Character::characterRangeCodePath(run.characters16(), run.length());
 }
 
-void Font::willUseFontData() const
+void Font::willUseFontData(UChar32 character) const
 {
     const FontFamily& family = fontDescription().family();
     if (m_fontFallbackList && m_fontFallbackList->fontSelector() && !family.familyIsEmpty())
-        m_fontFallbackList->fontSelector()->willUseFontData(fontDescription(), family.family());
+        m_fontFallbackList->fontSelector()->willUseFontData(fontDescription(), family.family(), character);
 }
 
 static inline bool isInRange(UChar32 character, UChar32 lowerBound, UChar32 upperBound)