Disable TabGrid/Group for Tablets

Since TabGrid/Group is no-op for Tablets, disable both features for
Tablets from client-side.

Bug: 1108468
Change-Id: I9b26c7ecd4f260b1903a0f40e1e86c985101d8b4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2363644
Commit-Queue: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Auto-Submit: Yue Zhang <yuezhanggg@chromium.org>
Reviewed-by: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#799509}

chrome/android/features/tab_ui/java/src/org/chromium/chrome/browser/tasks/tab_management/TabUiFeatureUtilities.java

@@ -9,6 +9,7 @@ import android.text.TextUtils;
 
 import androidx.annotation.Nullable;
 
+import org.chromium.base.ContextUtils;
 import org.chromium.base.Log;
 import org.chromium.base.SysUtils;
 import org.chromium.chrome.browser.device.DeviceClassManager;
@@ -20,6 +21,7 @@ import org.chromium.chrome.browser.flags.IntCachedFieldTrialParameter;
 import org.chromium.chrome.browser.flags.StringCachedFieldTrialParameter;
 import org.chromium.chrome.browser.tasks.ConditionalTabStripUtils;
 import org.chromium.chrome.features.start_surface.StartSurfaceConfiguration;
+import org.chromium.ui.base.DeviceFormFactor;
 
 /**
  * A class to handle the state of flags for tab_management.
@@ -93,6 +95,12 @@ public class TabUiFeatureUtilities {
         // Disable grid tab switcher if stack tab switcher is enabled for the start surface.
         if (StartSurfaceConfiguration.isStartSurfaceStackTabSwitcherEnabled()) return false;
 
+        // Disable grid tab switcher for tablet.
+        if (DeviceFormFactor.isNonMultiDisplayContextOnTablet(
+                    ContextUtils.getApplicationContext())) {
+            return false;
+        }
+
         // Having Tab Groups or Start implies Grid Tab Switcher.
         return (!DeviceClassManager.enableAccessibilityLayout()
                        && CachedFeatureFlags.isEnabled(ChromeFeatureList.TAB_GRID_LAYOUT_ANDROID)
@@ -107,6 +115,12 @@ public class TabUiFeatureUtilities {
         // Disable tab groups if stack tab switcher is enabled for the start surface.
         if (StartSurfaceConfiguration.isStartSurfaceStackTabSwitcherEnabled()) return false;
 
+        // Disable tab group for tablet.
+        if (DeviceFormFactor.isNonMultiDisplayContextOnTablet(
+                    ContextUtils.getApplicationContext())) {
+            return false;
+        }
+
         return !DeviceClassManager.enableAccessibilityLayout()
                 && CachedFeatureFlags.isEnabled(ChromeFeatureList.TAB_GROUPS_ANDROID)
                 && isTabManagementModuleSupported();