Set DEFAULT_REPEATS to 1
Set DEFAULT_REPEATS to 1

bench defaults to 1 repeat, so bench_pictures should do the same.

This is causing the Android build cycles to be *hours* long.
Review URL: https://codereview.appspot.com/6490123

git-svn-id: e8541e15acce502a64c929015570ad1648e548cd@5575 2bbb7eff-a529-9590-31e7-b0007b416f81

MatChung/color-emoji.skia,Hankuo/color-emoji.skia,MatChung/color-emoji.skia,hbwhlklive/color-emoji.skia,hbwhlklive/color-emoji.skia,Hankuo/color-emoji.skia,MatChung/color-emoji.skia,Hankuo/color-emoji.skia,Frankie-666/color-emoji.skia,hbwhlklive/color-emoji.skia,Hankuo/color-emoji.skia,Frankie-666/color-emoji.skia,hbwhlklive/color-emoji.skia,MatChung/color-emoji.skia,hbwhlklive/color-emoji.skia,MatChung/color-emoji.skia,Hankuo/color-emoji.skia,Frankie-666/color-emoji.skia,hbwhlklive/color-emoji.skia,Hankuo/color-emoji.skia,MatChung/color-emoji.skia,Frankie-666/color-emoji.skia,Frankie-666/color-emoji.skia,Frankie-666/color-emoji.skia