[Signin][Android] Fix histogram name in AccountPickerDelegate

Fixes typo in histogram name in AccountPickerDelegate, which was
recording "Signin.AndroidAccountConsistencyPromoAction" instead of
"Signin.AccountConsistencyPromoAction".

Bug: 1134177
Change-Id: I58bd063ffff39877b0be8db77e7730c983b6fed8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2443012
Commit-Queue: Boris Sazonov <bsazonov@chromium.org>
Commit-Queue: Mihai Sardarescu <msarda@chromium.org>
Auto-Submit: Boris Sazonov <bsazonov@chromium.org>
Reviewed-by: Mihai Sardarescu <msarda@chromium.org>
Cr-Commit-Position: refs/heads/master@{#812775}

chrome/android/java/src/org/chromium/chrome/browser/signin/account_picker/AccountPickerDelegate.java

@@ -173,7 +173,7 @@ public class AccountPickerDelegate implements WebSigninBridge.Listener {
      */
     public static void recordAccountConsistencyPromoAction(
             @AccountConsistencyPromoAction int promoAction) {
-        RecordHistogram.recordEnumeratedHistogram("Signin.AndroidAccountConsistencyPromoAction",
+        RecordHistogram.recordEnumeratedHistogram("Signin.AccountConsistencyPromoAction",
                 promoAction, AccountConsistencyPromoAction.MAX);
     }