Ramp win10_chromium_x64_rel_ng up to 100%.

BUG=731378

Change-Id: I62f65eb174bd50951e05249be16be966c51db20e
Reviewed-on: https://chromium-review.googlesource.com/1049265Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: Jao-ke Chin-Lee <jchinlee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#556796}

infra/config/branch/cq.cfg

@@ -129,7 +129,7 @@ verifiers {
       }
       builders {
         name: "win10_chromium_x64_rel_ng"
-        equivalent_to { bucket: "luci.chromium.try" percentage: 10 }
+        equivalent_to { bucket: "luci.chromium.try" percentage: 100 }
       }
       builders {
         name: "win7_chromium_rel_loc_exp"