bump SkStrAppendScalar_MaxSize to 14 to accomodate the largest string now that
scalar->string uses %.8g. Floats have at most 8 significant digits, plus we add
more space for sign, decimal point and exponent.

add tests to check these limits.



git-svn-id: http://skia.googlecode.com/svn/trunk@872 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed