Clang warnings for SkFontHost_FreeType_common.cpp
Clang warnings for SkFontHost_FreeType_common.cpp

Signed/unsigned comparison warnings while attempting to build with Clang
on Linux.

R=bungeman@google.com,joshualitt@chromium.org

Review URL: https://codereview.chromium.org/961103002

Hikari-no-Tenshi/android_external_skia,OneRom/external_skia,boulzordev/android_external_skia,OneRom/external_skia,HalCanary/skia-hc,TeamTwisted/external_skia,TeamExodus/external_skia,todotodoo/skia,AOSP-YU/platform_external_skia,ominux/skia,PAC-ROM/android_external_skia,YUPlayGodDev/platform_external_skia,w3nd1go/android_external_skia,Igalia/skia,w3nd1go/android_external_skia,nvoron23/skia,boulzordev/android_external_skia,YUPlayGodDev/platform_external_skia,nfxosp/platform_external_skia,PAC-ROM/android_external_skia,nvoron23/skia,AOSPB/external_skia,nvoron23/skia,MinimalOS-AOSP/platform_external_skia,amyvmiwei/skia,AOSP-YU/platform_external_skia,Jichao/skia,w3nd1go/android_external_skia,Hikari-no-Tenshi/android_external_skia,tmpvar/skia.cc,rubenvb/skia,rubenvb/skia,nvoron23/skia,Jichao/skia,rubenvb/skia,MarshedOut/android_external_skia,invisiblek/android_external_skia,noselhq/skia,google/skia,aosp-mirror/platform_external_skia,qrealka/skia-hc,shahrzadmn/skia,nvoron23/skia,AOSPB/external_skia,MonkeyZZZZ/platform_external_skia,VRToxin-AOSP/android_external_skia,Jichao/skia,boulzordev/android_external_skia,HalCanary/skia-hc,UBERMALLOW/external_skia,nvoron23/skia,boulzordev/android_external_skia,geekboxzone/mmallow_external_skia,AOSP-YU/platform_external_skia,vanish87/skia,geekboxzone/mmallow_external_skia,invisiblek/android_external_skia,todotodoo/skia,shahrzadmn/skia,spezi77/android_external_skia,Infinitive-OS/platform_external_skia,vanish87/skia,noselhq/skia,PAC-ROM/android_external_skia,samuelig/skia,nvoron23/skia,VRToxin-AOSP/android_external_skia,AOSP-YU/platform_external_skia,pcwalton/skia,Jichao/skia,ominux/skia,aosp-mirror/platform_external_skia,VRToxin-AOSP/android_external_skia,MarshedOut/android_external_skia,shahrzadmn/skia,shahrzadmn/skia,VRToxin-AOSP/android_external_skia,TeamExodus/external_skia,nvoron23/skia,google/skia,OneRom/external_skia,YUPlayGodDev/platform_external_skia,noselhq/skia,VRToxin-AOSP/android_external_skia,amyvmiwei/skia,OneRom/external_skia,tmpvar/skia.cc,nfxosp/platform_external_skia,tmpvar/skia.cc,OneRom/external_skia,tmpvar/skia.cc,pcwalton/skia,w3nd1go/android_external_skia,PAC-ROM/android_external_skia,shahrzadmn/skia,pcwalton/skia,MinimalOS-AOSP/platform_external_skia,UBERMALLOW/external_skia,samuelig/skia,rubenvb/skia,MonkeyZZZZ/platform_external_skia,Hikari-no-Tenshi/android_external_skia,amyvmiwei/skia,AOSPB/external_skia,HalCanary/skia-hc,MonkeyZZZZ/platform_external_skia,tmpvar/skia.cc,w3nd1go/android_external_skia,TeamExodus/external_skia,boulzordev/android_external_skia,pcwalton/skia,BrokenROM/external_skia,AOSP-YU/platform_external_skia,MinimalOS-AOSP/platform_external_skia,AOSPB/external_skia,TeamTwisted/external_skia,Jichao/skia,invisiblek/android_external_skia,Igalia/skia,qrealka/skia-hc,UBERMALLOW/external_skia,Jichao/skia,Hikari-no-Tenshi/android_external_skia,AOSP-YU/platform_external_skia,OneRom/external_skia,YUPlayGodDev/platform_external_skia,invisiblek/android_external_skia,samuelig/skia,todotodoo/skia,google/skia,Igalia/skia,noselhq/skia,TeamTwisted/external_skia,timduru/platform-external-skia,amyvmiwei/skia,PAC-ROM/android_external_skia,spezi77/android_external_skia,amyvmiwei/skia,noselhq/skia,todotodoo/skia,MarshedOut/android_external_skia,MonkeyZZZZ/platform_external_skia,Infinitive-OS/platform_external_skia,aosp-mirror/platform_external_skia,todotodoo/skia,tmpvar/skia.cc,rubenvb/skia,MinimalOS-AOSP/platform_external_skia,TeamExodus/external_skia,MonkeyZZZZ/platform_external_skia,timduru/platform-external-skia,UBERMALLOW/external_skia,w3nd1go/android_external_skia,invisiblek/android_external_skia,qrealka/skia-hc,qrealka/skia-hc,BrokenROM/external_skia,google/skia,VRToxin-AOSP/android_external_skia,OneRom/external_skia,MonkeyZZZZ/platform_external_skia,pcwalton/skia,pcwalton/skia,AOSPB/external_skia,rubenvb/skia,nfxosp/platform_external_skia,nfxosp/platform_external_skia,YUPlayGodDev/platform_external_skia,google/skia,samuelig/skia,rubenvb/skia,pcwalton/skia,noselhq/skia,rubenvb/skia,YUPlayGodDev/platform_external_skia,google/skia,Infinitive-OS/platform_external_skia,vanish87/skia,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,PAC-ROM/android_external_skia,YUPlayGodDev/platform_external_skia,MonkeyZZZZ/platform_external_skia,invisiblek/android_external_skia,HalCanary/skia-hc,MinimalOS-AOSP/platform_external_skia,Igalia/skia,AOSP-YU/platform_external_skia,BrokenROM/external_skia,YUPlayGodDev/platform_external_skia,timduru/platform-external-skia,google/skia,BrokenROM/external_skia,samuelig/skia,amyvmiwei/skia,qrealka/skia-hc,VRToxin-AOSP/android_external_skia,noselhq/skia,boulzordev/android_external_skia,Infinitive-OS/platform_external_skia,MarshedOut/android_external_skia,BrokenROM/external_skia,qrealka/skia-hc,rubenvb/skia,UBERMALLOW/external_skia,nvoron23/skia,ominux/skia,Jichao/skia,noselhq/skia,TeamTwisted/external_skia,tmpvar/skia.cc,MinimalOS-AOSP/platform_external_skia,spezi77/android_external_skia,Infinitive-OS/platf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