Keep Chromium ObjC column limit at 80 for consistency with C++

https://reviews.llvm.org/D29337
Patch from Dan Beam <dbeam@chromium.org>!

llvm-svn: 293675

clang/lib/Format/Format.cpp

@@ -653,6 +653,8 @@ FormatStyle getChromiumStyle(FormatStyle::LanguageKind Language) {
     ChromiumStyle.AllowShortLoopsOnASingleLine = false;
     ChromiumStyle.BinPackParameters = false;
     ChromiumStyle.DerivePointerAlignment = false;
+    if (Language == FormatStyle::LK_ObjC)
+      ChromiumStyle.ColumnLimit = 80;
   }
   ChromiumStyle.SortIncludes = false;
   return ChromiumStyle;