[Cronet] Do not call into native adapter after it is destroyed in ChromiumUrlRequest.java

components/cronet/android/java/src/org/chromium/net/ChromiumUrlRequest.java

Index: components/cronet/android/java/src/org/chromium/net/ChromiumUrlRequest.java
diff --git a/components/cronet/android/java/src/org/chromium/net/ChromiumUrlRequest.java b/components/cronet/android/java/src/org/chromium/net/ChromiumUrlRequest.java
index 05f933fed38ff8f74fd9942190623386aaed1ca9..baf7d00bd1146886c5a1c6d7d6c158ee588f0554 100644
--- a/components/cronet/android/java/src/org/chromium/net/ChromiumUrlRequest.java
+++ b/components/cronet/android/java/src/org/chromium/net/ChromiumUrlRequest.java
@@ -437,6 +437,13 @@ public class ChromiumUrlRequest implements HttpUrlRequest {
         return mUrl;
     }
 
+    /**
+     * Resets native request adapter object. This should only be used in tests.
+     */
+    public void resetAdapterForTesting() {

[mmenke, 2015/02/20 23:19:43]

Rather than have this method, can we run tests on a ChromiumUrlRequest that has
completed - maybe both on one that succeeded and one that failed?

[xunjieli, 2015/02/25 21:31:28]

Done.

+        mUrlRequestAdapter = 0;
+    }
+
     private static int convertRequestPriority(int priority) {
         switch (priority) {
             case HttpUrlRequest.REQUEST_PRIORITY_IDLE: