CB-11013 IAB enabling background play of YouTube videos?

Adds shouldPause feature to stop backgound audio

README.md

@@ -109,6 +109,7 @@ instance, or the system browser.
     - __zoom__: set to `yes` to show Android browser's zoom controls, set to `no` to hide them.  Default value is `yes`.
     - __hardwareback__: set to `yes` to use the hardware back button to navigate backwards through the `InAppBrowser`'s history. If there is no previous page, the `InAppBrowser` will close.  The default value is `yes`, so you must set it to `no` if you want the back button to simply close the InAppBrowser.
     - __mediaPlaybackRequiresUserAction__: Set to `yes` to prevent HTML5 audio or video from autoplaying (defaults to `no`).
+    - __shouldPauseOnSuspend__: Set to `yes` to make InAppBrowser WebView to pause/resume with the app to stop background audio (this may be required to avoid Google Play issues like described in [CB-11013](https://issues.apache.org/jira/browse/CB-11013)).
 
     iOS only:
 

src/android/InAppBrowser.java

@@ -87,6 +87,7 @@ public class InAppBrowser extends CordovaPlugin {
     private static final String CLEAR_SESSION_CACHE = "clearsessioncache";
     private static final String HARDWARE_BACK_BUTTON = "hardwareback";
     private static final String MEDIA_PLAYBACK_REQUIRES_USER_ACTION = "mediaPlaybackRequiresUserAction";
+    private static final String SHOULD_PAUSE = "shouldPauseOnSuspend";
 
     private InAppBrowserDialog dialog;
     private WebView inAppWebView;
@@ -99,6 +100,7 @@ public class InAppBrowser extends CordovaPlugin {
     private boolean clearSessionCache = false;
     private boolean hadwareBackButton = true;
     private boolean mediaPlaybackRequiresUserGesture = false;
+    private boolean shouldPauseInAppBrowser = false;
 
     /**
      * Executes the request and returns PluginResult.
@@ -265,6 +267,26 @@ public class InAppBrowser extends CordovaPlugin {
         closeDialog();
     }
 
+    /**
+     * Called when the system is about to start resuming a previous activity.
+     */
+    @Override
+    public void onPause(boolean multitasking) {
+        if (shouldPauseInAppBrowser) {
+            inAppWebView.onPause();
+        }
+    }
+
+    /**
+     * Called when the activity will start interacting with the user.
+     */
+    @Override
+    public void onResume(boolean multitasking) {
+        if (shouldPauseInAppBrowser) {
+            inAppWebView.onResume();
+        }
+    }
+
     /**
      * Called by AccelBroker when listener is to be shut down.
      * Stop listener.
@@ -514,6 +536,10 @@ public class InAppBrowser extends CordovaPlugin {
                     clearSessionCache = cache.booleanValue();
                 }
             }
+            Boolean shouldPause = features.get(SHOULD_PAUSE);
+            if (shouldPause != null) {
+                shouldPauseInAppBrowser = shouldPause.booleanValue();
+            }
         }
 
         final CordovaWebView thatWebView = this.webView;