[Android WebView] Add an API to toggle the JS navigator.online property

android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java

Index: android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java
diff --git a/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java b/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java
index 455d30bd9aadbcc5a3102f2b6445e1f2353772e1..6d508ed90d979762b5a8f975c209ddea39c1968f 100644
--- a/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java
+++ b/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java
@@ -392,4 +392,29 @@ public class AwContentsTest extends AwTestBase {
             if (webServer != null) webServer.shutdown();
         }
     }
+
+    @Feature({"AndroidWebView", "setNetworkAvailable"})
+    @SmallTest
+    public void testSetNetworkAvailable() throws Throwable {
+        AwTestContainerView testView = createAwTestContainerViewOnMainSync(mContentsClient);
+        AwContents awContents = testView.getAwContents();
+        String SCRIPT = "navigator.onLine";
+
+        enableJavaScriptOnUiThread(awContents);
+        loadUrlSync(awContents, mContentsClient.getOnPageFinishedHelper(), "about:blank");
+
+        // Default to "online".
+        assertEquals("true", executeJavaScriptAndWaitForResult(awContents, mContentsClient,
+              SCRIPT));
+
+        // Forcing "offline".
+        awContents.setNetworkAvailable(false);
+        assertEquals("false", executeJavaScriptAndWaitForResult(awContents, mContentsClient,
+              SCRIPT));
+
+        // Forcing "online".
+        awContents.setNetworkAvailable(true);
+        assertEquals("true", executeJavaScriptAndWaitForResult(awContents, mContentsClient,
+              SCRIPT));
+    }
 }