Disable item animation for Duet-TabStrip Integration

Since fixes http://crrev.com/c/2036874 and http://crrev.com/c/2048988
don't eliminate all crashes caused by recycling detached item in popup
tab strip, this CL block the crashing path by disabling the item
animation for Duet-TabStrip integration to get rid of the crash.
Note that this CL is a band-aid fix in sacrifice of animation.

Bug: 1045944
Change-Id: I3301deed92e40f4fe2306d1ef1ff5ceadc3edbc8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2064453
Commit-Queue: Yue Zhang <yuezhanggg@chromium.org>
Reviewed-by: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#742752}

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

@@ -209,6 +209,13 @@ public class TabListCoordinator implements Destroyable {
 
         mRecyclerView.setAdapter(mAdapter);
         mRecyclerView.setHasFixedSize(true);
+        if (mMode == TabListMode.STRIP
+                && CachedFeatureFlags.isDuetTabStripIntegrationAndroidEnabled()
+                && CachedFeatureFlags.isBottomToolbarEnabled()) {
+            // TODO(crbug.com/1045944): Disable item animation for now for Duet-TabStrip Integration
+            //  to avoid crash.
+            mRecyclerView.setItemAnimator(null);
+        }
         if (recyclerListener != null) mRecyclerView.setRecyclerListener(recyclerListener);
 
         if (dynamicResourceLoader != null) {