Due to API limitations, this will only serialize native fonts, not Web
fonts. Specifically, there is no way I know of to fetch the
`CGDataProvider` associated with a `CGFont`. This isn't a problem for
Servo, however, because Servo knows which fonts are Web fonts and stores
their byte data separately.
Fix CGFloat type definition for 32-bit
`CGFloat` was always defined as a double, and there was a `TODO` to fix this. I ran into the issue, so here's a PR to fix it :)
The definition for `CGFloat` in CoreGraphics/CGBase.h looks like:
``` c
#if defined(__LP64__) && __LP64__
# define CGFLOAT_TYPE double
#else
# define CGFLOAT_TYPE float
#endif
typedef CGFLOAT_TYPE CGFloat;
```
I also noticed that the definition for `boolean_t` was wrong for arm. The definition in mach/arm/boolean.h is:
``` c
typedef int boolean_t;
```
And the definition in mach/i386/boolean.h is:
``` c
#if defined(__x86_64__) && !defined(KERNEL)
typedef unsigned int boolean_t;
#else
typedef int boolean_t;
#endif
```
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Luo
