[Android Java Bridge] Recycle old V8 wrapper objects on navigations

content/public/android/javatests/src/org/chromium/content/browser/JavaBridgeBasicsTest.java

Index: content/public/android/javatests/src/org/chromium/content/browser/JavaBridgeBasicsTest.java
diff --git a/content/public/android/javatests/src/org/chromium/content/browser/JavaBridgeBasicsTest.java b/content/public/android/javatests/src/org/chromium/content/browser/JavaBridgeBasicsTest.java
index b6d98c6b0fb7c90e5982bb8824ed3b06ccef15ee..3ce9a2cf1e172caeca2c488ee9f1875f1517a42b 100644
--- a/content/public/android/javatests/src/org/chromium/content/browser/JavaBridgeBasicsTest.java
+++ b/content/public/android/javatests/src/org/chromium/content/browser/JavaBridgeBasicsTest.java
@@ -333,12 +333,13 @@ public class JavaBridgeBasicsTest extends JavaBridgeTestBase {
 
     @SmallTest
     @Feature({"AndroidWebView", "Android-JavaBridge"})
-    public void testClientPropertiesPersistAcrossPageLoads() throws Throwable {
+    public void testCustomPropertiesCleanedUpOnPageReloads() throws Throwable {
         assertEquals("object", executeJavaScriptAndGetStringResult("typeof testController"));
         executeJavaScript("testController.myProperty = 42;");
         assertEquals("42", executeJavaScriptAndGetStringResult("testController.myProperty"));
         synchronousPageReload();
-        assertEquals("42", executeJavaScriptAndGetStringResult("testController.myProperty"));
+        assertEquals("object", executeJavaScriptAndGetStringResult("typeof testController"));
+        assertEquals("undefined", executeJavaScriptAndGetStringResult("testController.myProperty"));
     }
 
     @SmallTest