Merge "Add API WebView.getWebViewLooper()" into pi-dev

am: 6951716952

Change-Id: I912664ece4b41853dcac61f0b6adf11a0eb854c0

api/current.txt

@@ -52004,6 +52004,7 @@ package android.webkit {
     method public android.webkit.WebChromeClient getWebChromeClient();
     method public static java.lang.ClassLoader getWebViewClassLoader();
     method public android.webkit.WebViewClient getWebViewClient();
+    method public android.os.Looper getWebViewLooper();
     method public void goBack();
     method public void goBackOrForward(int);
     method public void goForward();

core/java/android/webkit/WebView.java

@@ -2447,6 +2447,14 @@ public class WebView extends AbsoluteLayout
         return getFactory().getWebViewClassLoader();
     }
 
+    /**
+     * Returns the {@link Looper} corresponding to the thread on which WebView calls must be made.
+     */
+    @NonNull
+    public Looper getWebViewLooper() {
+        return mWebViewThread;
+    }
+
     /**
      * Returns the {@link Looper} corresponding to the thread on which WebView calls must be made.
      */