Adding ability ti hide zoom controls without disabling pinch zooming gestures

Hoping this will fix "IllegalArgumentException Receiver not registered: android.widget.ZoomButtonsController" exception seen in Firebase.

Author: hvaughan3

src/android/InAppBrowser.java

@@ -89,6 +89,7 @@ public class InAppBrowser extends CordovaPlugin {
     private static final String EXIT_EVENT = "exit";
     private static final String LOCATION = "location";
     private static final String ZOOM = "zoom";
+    private static final String SHOWZOOM = "showZoom";
     private static final String HIDDEN = "hidden";
     private static final String LOAD_START_EVENT = "loadstart";
     private static final String LOAD_STOP_EVENT = "loadstop";
@@ -117,6 +118,7 @@ public class InAppBrowser extends CordovaPlugin {
     private CallbackContext callbackContext;
     private boolean showLocationBar = true;
     private boolean showZoomControls = true;
+    private boolean enableZoomControls = true;
     private boolean openWindowHidden = false;
     private boolean clearAllCache = false;
     private boolean clearSessionCache = false;
@@ -557,6 +559,7 @@ private InAppBrowser getInAppBrowser(){
     public String showWebPage(final String url, HashMap<String, String> features) {
         // Determine if we should hide the location bar.
         showLocationBar = true;
+        enableZoomControls = true;
         showZoomControls = true;
         openWindowHidden = false;
         mediaPlaybackRequiresUserGesture = false;
@@ -574,7 +577,11 @@ public String showWebPage(final String url, HashMap<String, String> features) {
             }
             String zoom = features.get(ZOOM);
             if (zoom != null) {
-                showZoomControls = zoom.equals("yes") ? true : false;
+                enableZoomControls = zoom.equals("yes") ? true : false;
+            }
+            String showZoom = features.get(SHOWZOOM);
+            if (showZoom != null) {
+                showZoomControls = showZoom.equals("yes") ? true : false;
             }
             String hidden = features.get(HIDDEN);
             if (hidden != null) {
@@ -935,7 +942,8 @@ public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType)
                 WebSettings settings = inAppWebView.getSettings();
                 settings.setJavaScriptEnabled(true);
                 settings.setJavaScriptCanOpenWindowsAutomatically(true);
-                settings.setBuiltInZoomControls(showZoomControls);
+                settings.setBuiltInZoomControls(enableZoomControls);
+                settings.setDisplayZoomControls(showZoomControls);
                 settings.setPluginState(android.webkit.WebSettings.PluginState.ON);
 
                 if(android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR1) {