Auto merge of #16512 - alfredoyang:use_native_font_handle, r=asajeffrey

Use NativeFontHandle instead of CGFont

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```serde``` is removed from ```core-graphics```, ```NativeFontHandle``` implements serialization and we should use ```NativeFontHandle``` instead of ```CGFont```.

This PR depends on followings.
https://github.com/servo/core-graphics-rs/pull/82
https://github.com/servo/webrender/pull/1133

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X]  These changes fix #15607 (github issue number if applicable).

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- [X] These changes do not require tests according to issue comment.

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This commit is contained in:
bors-servo 2017-05-02 10:59:44 -05:00 committed by GitHub
commit f56032b920

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