Support dangerous download infobar on touchless devices

Bug: 958469
Change-Id: I88129f30f187636de500a34583fe002b44352b78
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1592521
Commit-Queue: Matthew Jones <mdjones@chromium.org>
Reviewed-by: Theresa <twellington@chromium.org>
Cr-Commit-Position: refs/heads/master@{#659220}

chrome/android/java/src/org/chromium/chrome/browser/infobar/ConfirmInfoBar.java

@@ -70,7 +70,10 @@ public class ConfirmInfoBar extends InfoBar {
     @Override
     public boolean supportsTouchlessMode() {
         // Only allow whitelisted implementations of the confirm infobar.
-        return getInfoBarIdentifier() == InfoBarIdentifier.POPUP_BLOCKED_INFOBAR_DELEGATE_MOBILE;
+        @InfoBarIdentifier
+        int infobarId = getInfoBarIdentifier();
+        return infobarId == InfoBarIdentifier.POPUP_BLOCKED_INFOBAR_DELEGATE_MOBILE
+                || infobarId == InfoBarIdentifier.DANGEROUS_DOWNLOAD_INFOBAR_DELEGATE_ANDROID;
     }
 
     @Override

chrome/android/touchless/java/res/layout/touchless_dialog_view.xml

@@ -23,7 +23,6 @@
         android:layout_gravity="center"
         android:ellipsize="end"
         android:padding="8dp"
-        android:singleLine="true"
         android:textAppearance="@style/TextAppearance.BlackTitle1"
         android:visibility="gone" />