Enable Emoji Fitzpatrick modifier sequences

third_party/WebKit/Source/platform/fonts/Character.cpp

Index: third_party/WebKit/Source/platform/fonts/Character.cpp
diff --git a/third_party/WebKit/Source/platform/fonts/Character.cpp b/third_party/WebKit/Source/platform/fonts/Character.cpp
index 6ea32548579a414039fc3b488389cb6bb9939c02..a7bc15688416f938a42863d21c3a9ef2c102b2f0 100644
--- a/third_party/WebKit/Source/platform/fonts/Character.cpp
+++ b/third_party/WebKit/Source/platform/fonts/Character.cpp
@@ -190,6 +190,12 @@ CodePath Character::characterRangeCodePath(const UChar* characters, unsigned len
             if (supplementaryCharacter <= 0x1F1FF)
                 return ComplexPath;
 
+            // Emoji Fitzpatrick modifiers trigger upgrade to complex path for shaping them.
+            if (supplementaryCharacter < 0x1F3FB)
+                continue;
+            if (supplementaryCharacter <= 0x1F3FF)
+                return ComplexPath;
+
             // Man and Woman Emojies,
             // in order to support emoji joiner combinations for family and couple pictographs.
             // Compare http://unicode.org/reports/tr51/#Emoji_ZWJ_Sequences