[Autofill Assistant] Fixed recently introduced crash upon showing details.

This relates to http://crrev/c/1340940 , where the class of the bottombar layout was changed in autofill_assistant_sheet.xml, but not in the corresponding cast in BottomBarAnimations.java:setBottomBarHeight().

This merge request was approved here: https://bugs.chromium.org/p/chromium/issues/detail?id=911035

Bug: 806868
Change-Id: Id2bd5bf41862afe7e8425188a2fc048c478726c8
Reviewed-on: https://chromium-review.googlesource.com/c/1356981
Reviewed-by: Mathias Carlen <[email protected]>
Commit-Queue: Clemens Arbesser <[email protected]>
Cr-Original-Commit-Position: refs/heads/master@{#612702}(cherry picked from commit e5dcd97)
Reviewed-on: https://chromium-review.googlesource.com/c/1365596
Reviewed-by: Stephane Zermatten <[email protected]>
Cr-Commit-Position: refs/branch-heads/3626@{#110}
Cr-Branched-From: d897fb1-refs/heads/master@{#612437}

Author: Clemens Arbesser

chrome/android/java/src/org/chromium/chrome/browser/autofill_assistant/ui/BottomBarAnimations.java

@@ -7,11 +7,11 @@
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.ValueAnimator;
+import android.support.design.widget.CoordinatorLayout;
 import android.util.DisplayMetrics;
 import android.util.TypedValue;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.FrameLayout;
 import android.widget.LinearLayout;
 
 import org.chromium.base.Callback;
@@ -159,8 +159,8 @@ public void hideDetails() {
     }
 
     private void setBottomBarHeight(int targetHeight) {
-        FrameLayout.LayoutParams layoutParams =
-                (FrameLayout.LayoutParams) mBottomBarView.getLayoutParams();
+        CoordinatorLayout.LayoutParams layoutParams =
+                (CoordinatorLayout.LayoutParams) mBottomBarView.getLayoutParams();
         layoutParams.height = targetHeight;
         mBottomBarView.setLayoutParams(layoutParams);
     }