Performance related change, Optimization for / and % operator.

Source/platform/fonts/SimpleFontData.cpp

Index: Source/platform/fonts/SimpleFontData.cpp
diff --git a/Source/platform/fonts/SimpleFontData.cpp b/Source/platform/fonts/SimpleFontData.cpp
index da13c13985b10d54f2ae08a6f0b9b2a019ead071..849e889a0c0a0e787474f7f0c507c433eaaf4830 100644
--- a/Source/platform/fonts/SimpleFontData.cpp
+++ b/Source/platform/fonts/SimpleFontData.cpp
@@ -160,8 +160,9 @@ const SimpleFontData* SimpleFontData::fontDataForCharacter(UChar32) const
 
 Glyph SimpleFontData::glyphForCharacter(UChar32 character) const
 {
-    GlyphPageTreeNode* node = GlyphPageTreeNode::getRootChild(this, character / GlyphPage::size);
-    return node->page() ? node->page()->glyphAt(character % GlyphPage::size) : 0;
+    // As GlyphPage::size is power of 2 so shifting is valid
+    GlyphPageTreeNode* node = GlyphPageTreeNode::getRootChild(this, character >> GlyphPage::sizeBits);
+    return node->page() ? node->page()->glyphAt(character & 0xFF) : 0;
 }
 
 bool SimpleFontData::isSegmented() const