Replace View.GONE with View.INVISIBLE for banner ads.

PiperOrigin-RevId: 940695795

Author: Nicholas Ventimiglia

source/plugin/Assets/Plugins/Android/GoogleMobileAdsPlugin.androidlib/src/main/java/com/google/unity/ads/Banner.java

@@ -151,7 +151,7 @@ protected void createAdView(final String publisherId, final AdSize adSize) {
     adView.setBackgroundColor(Color.TRANSPARENT);
     adView.setAdUnitId(publisherId);
     adView.setAdSize(adSize);
-    adView.setVisibility(View.GONE);
+    adView.setVisibility(View.INVISIBLE);
     adView.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
     unityPlayerActivity.addContentView(adView, getLayoutParams());
     adView.setAdListener(
@@ -346,15 +346,15 @@ public void run() {
         });
   }
 
-  /** Sets the {@link AdView} to be gone. */
+  /** Sets the {@link AdView} to be invisible. */
   public void hide() {
     unityPlayerActivity.runOnUiThread(
         new Runnable() {
           @Override
           public void run() {
             Log.d(PluginUtils.LOGTAG, "Calling hide() on Android");
             hidden = true;
-            adView.setVisibility(View.GONE);
+            adView.setVisibility(View.INVISIBLE);
             adView.pause();
           }
         });

source/plugin/Assets/Plugins/Android/GoogleMobileAdsPlugin.androidlib/src/main/java/com/google/unity/ads/admanager/UnityAdManagerBannerView.java

@@ -68,7 +68,7 @@ protected void createAdView(final String publisherId, final AdSize adSize) {
     adView.setBackgroundColor(Color.TRANSPARENT);
     adView.setAdUnitId(publisherId);
     adView.setAdSize(adSize);
-    adView.setVisibility(View.GONE);
+    adView.setVisibility(View.INVISIBLE);
     adView.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
     unityPlayerActivity.addContentView(adView, getLayoutParams());
     adView.setAdListener(

source/plugin/Assets/Plugins/Android/GoogleMobileAdsPlugin.androidlib/src/test/java/com/google/unity/ads/BannerTest.java

@@ -139,9 +139,9 @@ public void show_setsAdViewVisibilityToVisible() {
   }
 
   @Test
-  public void hide_setsAdViewVisibilityToGone() {
+  public void hide_setsAdViewVisibilityToInvisible() {
     banner.hide();
-    assertThat(banner.adView.getVisibility()).isEqualTo(View.GONE);
+    assertThat(banner.adView.getVisibility()).isEqualTo(View.INVISIBLE);
   }
 
   @Test