Crash in BraveNewsPreferencesTypeAdapter

[Serg]

I found that crash on GPC on nightly v1.68.6. It's fine to fix it in master only as there are not a significant amount of them.

Exception java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
  at org.chromium.chrome.browser.settings.BraveNewsPreferencesTypeAdapter.getItemCount (BraveNewsPreferencesTypeAdapter.java:420)
  at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep1 (RecyclerView.java:4545)
  at androidx.recyclerview.widget.RecyclerView.onMeasure (RecyclerView.java:4011)
  at android.view.View.measure (View.java:27131)
  at android.view.ViewGroup.measureChildWithMargins (ViewGroup.java:7951)
  at android.widget.LinearLayout.measureChildBeforeLayout (LinearLayout.java:1552)
  at android.widget.LinearLayout.measureVertical (LinearLayout.java:842)
  at android.widget.LinearLayout.onMeasure (LinearLayout.java:721)
  at android.view.View.measure (View.java:27131)
  at android.view.ViewGroup.measureChildWithMargins (ViewGroup.java:7951)
  at android.widget.FrameLayout.onMeasure (FrameLayout.java:194)
  at android.view.View.measure (View.java:27131)
  at android.view.ViewGroup.measureChildWithMargins (ViewGroup.java:7951)
  at androidx.coordinatorlayout.widget.CoordinatorLayout.onMeasureChild (CoordinatorLayout.java:804)
  at com.google.android.material.appbar.HeaderScrollingViewBehavior.onMeasureChild (HeaderScrollingViewBehavior.java:100)
  at androidx.coordinatorlayout.widget.CoordinatorLayout.onMeasure (CoordinatorLayout.java:875)
  at android.view.View.measure (View.java:27131)
  at android.view.ViewGroup.measureChildWithMargins (ViewGroup.java:7951)
  at android.widget.FrameLayout.onMeasure (FrameLayout.java:194)
  at androidx.appcompat.widget.ContentFrameLayout.onMeasure (ContentFrameLayout.java:141)
  at android.view.View.measure (View.java:27131)
  at android.view.ViewGroup.measureChildWithMargins (ViewGroup.java:7951)
  at android.widget.LinearLayout.measureChildBeforeLayout (LinearLayout.java:1552)
  at android.widget.LinearLayout.measureVertical (LinearLayout.java:842)
  at android.widget.LinearLayout.onMeasure (LinearLayout.java:721)
  at androidx.appcompat.widget.FitWindowsLinearLayout.onMeasure (FitWindowsLinearLayout.java:7)
  at android.view.View.measure (View.java:27131)
  at android.view.ViewGroup.measureChildWithMargins (ViewGroup.java:7951)
  at android.widget.FrameLayout.onMeasure (FrameLayout.java:194)
  at android.view.View.measure (View.java:27131)
  at android.view.ViewGroup.measureChildWithMargins (ViewGroup.java:7951)
  at android.widget.LinearLayout.measureChildBeforeLayout (LinearLayout.java:1552)
  at android.widget.LinearLayout.measureVertical (LinearLayout.java:842)
  at android.widget.LinearLayout.onMeasure (LinearLayout.java:721)
  at android.view.View.measure (View.java:27131)
  at android.view.ViewGroup.measureChildWithMargins (ViewGroup.java:7951)
  at android.widget.FrameLayout.onMeasure (FrameLayout.java:194)
  at com.android.internal.policy.DecorView.onMeasure (DecorView.java:1173)
  at android.view.View.measure (View.java:27131)
  at android.view.ViewRootImpl.performMeasure (ViewRootImpl.java:4187)
  at android.view.ViewRootImpl.measureHierarchy (ViewRootImpl.java:2936)
  at android.view.ViewRootImpl.performTraversals (ViewRootImpl.java:3204)
  at android.view.ViewRootImpl.doTraversal (ViewRootImpl.java:2618)
  at android.view.ViewRootImpl$TraversalRunnable.run (ViewRootImpl.java:9971)
  at android.view.Choreographer$CallbackRecord.run (Choreographer.java:1010)
  at android.view.Choreographer.doCallbacks (Choreographer.java:809)
  at android.view.Choreographer.doFrame (Choreographer.java:744)
  at android.view.Choreographer$FrameDisplayEventReceiver.run (Choreographer.java:995)
  at android.os.Handler.handleCallback (Handler.java:938)
  at android.os.Handler.dispatchMessage (Handler.java:99)
  at android.os.Looper.loop (Looper.java:246)
  at android.app.ActivityThread.main (ActivityThread.java:8633)
  at java.lang.reflect.Method.invoke
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:602)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1130)