Sky shouldn't round font weights
Sky shouldn't round font weights

This CL updates our use of Skia's API for loading fonts to load exactly the
font the developer asked for instead of rounding.

R=eseidel@chromium.org
BUG=https://github.com/domokit/mojo/issues/65

Review URL: https://codereview.chromium.org/1017563002

mikejurka/engine,jason-simmons/sky_engine,jimsimon/sky_engine,tvolkert/engine,iansf/sky_engine,jamesr/sky_engine,devoncarew/engine,krisgiesing/sky_engine,afandria/sky_engine,devoncarew/sky_engine,jason-simmons/sky_engine,chinmaygarde/flutter_engine,Hixie/sky_engine,chinmaygarde/sky_engine,rmacnak-google/engine,qiankunshe/sky_engine,rmacnak-google/engine,mdakin/engine,abarth/sky_engine,cdotstout/sky_engine,flutter/engine,jimsimon/sky_engine,TribeMedia/sky_engine,afandria/sky_engine,jimsimon/sky_engine,TribeMedia/sky_engine,lyceel/engine,jason-simmons/flutter_engine,mpcomplete/engine,mdakin/engine,jamesr/sky_engine,lyceel/engine,zhangxq5012/sky_engine,jamesr/flutter_engine,cdotstout/sky_engine,chinmaygarde/sky_engine,devoncarew/engine,flutter/engine,mxia/engine,abarth/sky_engine,abarth/sky_engine,krisgiesing/sky_engine,jimsimon/sky_engine,Hixie/sky_engine,devoncarew/sky_engine,mdakin/engine,jamesr/flutter_engine,tvolkert/engine,flutter/engine,takaaptech/sky_engine,xunmengfeng/engine,abarth/sky_engine,jimsimon/sky_engine,takaaptech/sky_engine,krisgiesing/sky_engine,rmacnak-google/engine,afandria/sky_engine,rmacnak-google/engine,jason-simmons/sky_engine,mdakin/engine,jason-simmons/flutter_engine,mdakin/engine,zhangxq5012/sky_engine,jason-simmons/flutter_engine,devoncarew/sky_engine,jamesr/flutter_engine,takaaptech/sky_engine,afandria/sky_engine,axinging/sky_engine,devoncarew/engine,jamesr/sky_engine,devoncarew/engine,qiankunshe/sky_engine,flutter/engine,chinmaygarde/sky_engine,qiankunshe/sky_engine,devoncarew/sky_engine,jamesr/sky_engine,takaaptech/sky_engine,xunmengfeng/engine,mxia/engine,axinging/sky_engine,TribeMedia/sky_engine,qiankunshe/sky_engine,flutter/engine,chinmaygarde/sky_engine,iansf/sky_engine,takaaptech/sky_engine,lyceel/engine,Hixie/sky_engine,mikejurka/engine,cdotstout/sky_engine,jamesr/flutter_engine,cdotstout/sky_engine,jimsimon/sky_engine,zhangxq5012/sky_engine,cdotstout/sky_engine,aam/engine,jimsimon/sky_engine,mpcomplete/flutter_engine,mikejurka/engine,Hixie/sky_engine,TribeMedia/sky_engine,tvolkert/engine,devoncarew/engine,aam/engine,mikejurka/engine,devoncarew/sky_engine,mikejurka/engine,iansf/sky_engine,jamesr/flutter_engine,tvolkert/engine,jason-simmons/sky_engine,zhangxq5012/sky_engine,jamesr/flutter_engine,mikejurka/engine,qiankunshe/sky_engine,mpcomplete/engine,mdakin/engine,afandria/sky_engine,iansf/sky_engine,mikejurka/engine,jason-simmons/flutter_engine,chinmaygarde/flutter_engine,krisgiesing/sky_engine,rmacnak-google/engine,chinmaygarde/flutter_engine,cdotstout/sky_engine,mpcomplete/engine,lyceel/engine,devoncarew/engine,qiankunshe/sky_engine,aam/engine,devoncarew/sky_engine,lyceel/engine,axinging/sky_engine,tvolkert/engine,lyceel/engine,qiankunshe/sky_engine,axinging/sky_engine,qiankunshe/sky_engine,chinmaygarde/flutter_engine,mxia/engine,mpcomplete/engine,jason-simmons/sky_engine,mpcomplete/engine,jimsimon/sky_engine,TribeMedia/sky_engine,tvolkert/engine,mikejurka/engine,mpcomplete/engine,chinmaygarde/sky_engine,cdotstout/sky_engine,mxia/engine,jamesr/sky_engine,devoncarew/sky_engine,aam/engine,aam/engine,krisgiesing/sky_engine,takaaptech/sky_engine,iansf/sky_engine,xunmengfeng/engine,jamesr/flutter_engine,jamesr/sky_engine,TribeMedia/sky_engine,Hixie/sky_engine,xunmengfeng/engine,aam/engine,flutter/engine,Hixie/sky_engine,afandria/sky_engine,axinging/sky_engine,mpcomplete/flutter_engine,chinmaygarde/sky_engine,aam/engine,mpcomplete/flutter_engine,iansf/sky_engine,zhangxq5012/sky_engine,chinmaygarde/sky_engine,aam/engine,mpcomplete/flutter_engine,chinmaygarde/flutter_engine,zhangxq5012/sky_engine,jamesr/flutter_engine,jamesr/sky_engine,mxia/engine,iansf/sky_engine,axinging/sky_engine,xunmengfeng/engine,mpcomplete/engine,flutter/engine,mdakin/engine,flutter/engine,jason-simmons/flutter_engine,zhangxq5012/sky_engine,mikejurka/engine,tvolkert/engine,TribeMedia/sky_engine,zhangxq5012/sky_engine,TribeMedia/sky_engine,chinmaygarde/flutter_engine,TribeMedia/sky_engine,mdakin/engine,rmacnak-google/engine,abarth/sky_engine,krisgiesing/sky_engine,abarth/sky_engine,jimsimon/sky_engine,afandria/sky_engine,xunmengfeng/engine,zhangxq5012/sky_engine,mpcomplete/engine,chinmaygarde/flutter_engine,jason-simmons/flutter_engine,axinging/sky_engine,mpcomplete/flutter_engine,mpcomplete/flutter_engine,jason-simmons/sky_engine,afandria/sky_engine,axinging/sky_engine,mxia/engine,Hixie/sky_engine,iansf/sky_engine,takaaptech/sky_engine,jason-simmons/flutter_engine,mxia/engine,xunmengfeng/engine,lyceel/engine,takaaptech/sky_engine,jason-simmons/sky_engine,mxia/engine,takaaptech/sky_engine,axinging/sky_engine,jason-simmons/flutter_engine,krisgiesing/sky_engine,devoncarew/engine,rmacnak-google/engine,jamesr/flutter_engine,Hixie/sky_engine,abarth/sky_engine