[Android WebView] Call shouldInterceptRequest on a background thread

android_webview/browser/aw_web_resource_response.cc

Index: android_webview/browser/aw_web_resource_response.cc
diff --git a/android_webview/browser/aw_web_resource_response.cc b/android_webview/browser/aw_web_resource_response.cc
index 44f2aa87abdc9d2a3ea170d1c7c3cfc6d400cac5..9df7701e88edc3b6eff952ad2447d6865b3c1a9a 100644
--- a/android_webview/browser/aw_web_resource_response.cc
+++ b/android_webview/browser/aw_web_resource_response.cc
@@ -68,19 +68,12 @@ class StreamReaderJobDelegateImpl
 }  // namespace
 
 // static
-net::URLRequestJob* AwWebResourceResponse::CreateJobFor(
-    scoped_ptr<AwWebResourceResponse> aw_web_resource_response,
-    net::URLRequest* request,
-    net::NetworkDelegate* network_delegate) {
+void AwWebResourceResponse::JobDeliverResponseFromEmbedder(
+    AndroidStreamReaderURLRequestJob* job,
+    scoped_ptr<AwWebResourceResponse> aw_web_resource_response) {
   DCHECK(aw_web_resource_response);
-  DCHECK(request);
-  DCHECK(network_delegate);
-
-  return new AndroidStreamReaderURLRequestJob(
-      request,
-      network_delegate,
-      make_scoped_ptr(
-          new StreamReaderJobDelegateImpl(aw_web_resource_response.Pass())));
+  job->DeliverResponseFromDelegate(make_scoped_ptr(
+      new StreamReaderJobDelegateImpl(aw_web_resource_response.Pass())));
 }
 
 }  // namespace android_webview