[Tablet Default Apps] DCHECK LT should be LE.

BUG=1019549

Change-Id: Icf40f16be92256fef4cd27a730e48b54ac10ec2b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1933679Reviewed-by: Maggie Cai <mxcai@chromium.org>
Commit-Queue: Melissa Zhang <melzhang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#718516}

chrome/browser/apps/intent_helper/intent_picker_auto_display_pref.cc

@@ -115,7 +115,7 @@ IntentPickerAutoDisplayPref::QueryPlatform() {
   int platform = 0;
   pref_dict_->GetInteger(kPlatformKey, &platform);
   DCHECK_GE(platform, static_cast<int>(Platform::kNone));
-  DCHECK_LT(platform, static_cast<int>(Platform::kMaxValue));
+  DCHECK_LE(platform, static_cast<int>(Platform::kMaxValue));
 
   return static_cast<Platform>(platform);
 }