Block Duet feature on tablets from FeatureUtilities

This patch changes the feature check for Duet to include a check for
tablets. Duet will not be enabled on tablets and is causing a crash
when the util reports that it is enabled (when it technically isn't).

Bug: 862818
Change-Id: I8117296e0397453d9c16bc73f7f72ae49ee78499
Reviewed-on: https://chromium-review.googlesource.com/1135708Reviewed-by: Theresa <twellington@chromium.org>
Commit-Queue: Matthew Jones <mdjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#574751}

chrome/android/java/src/org/chromium/chrome/browser/util/FeatureUtilities.java

@@ -16,6 +16,7 @@ import android.os.UserManager;
 import android.speech.RecognizerIntent;
 
 import org.chromium.base.CommandLine;
+import org.chromium.base.ContextUtils;
 import org.chromium.base.StrictModeContext;
 import org.chromium.base.SysUtils;
 import org.chromium.base.ThreadUtils;
@@ -260,7 +261,9 @@ public class FeatureUtilities {
             ChromePreferenceManager prefManager = ChromePreferenceManager.getInstance();
 
             try (StrictModeContext unused = StrictModeContext.allowDiskReads()) {
-                sIsBottomToolbarEnabled = prefManager.isBottomToolbarEnabled();
+                sIsBottomToolbarEnabled = prefManager.isBottomToolbarEnabled()
+                        && !DeviceFormFactor.isNonMultiDisplayContextOnTablet(
+                                   ContextUtils.getApplicationContext());
             }
         }
         return sIsBottomToolbarEnabled;