[Android WebView] Call shouldInterceptRequest on a background thread

android_webview/browser/aw_web_resource_response.h

Index: android_webview/browser/aw_web_resource_response.h
diff --git a/android_webview/browser/aw_web_resource_response.h b/android_webview/browser/aw_web_resource_response.h
index 34963606ff86b882915ab31b641e2f0cb9369293..8c317d23304b0d943f30fed691b1870fd4801495 100644
--- a/android_webview/browser/aw_web_resource_response.h
+++ b/android_webview/browser/aw_web_resource_response.h
@@ -14,11 +14,11 @@ namespace net {
 class HttpResponseHeaders;
 class NetworkDelegate;
 class URLRequest;
-class URLRequestJob;
 }
 
 namespace android_webview {
 
+class AndroidStreamReaderURLRequestJob;
 class InputStream;
 
 // This class represents the Java-side data that is to be used to complete a
@@ -39,14 +39,12 @@ class AwWebResourceResponse {
       JNIEnv* env,
       net::HttpResponseHeaders* headers) const = 0;
 
-  // This creates a URLRequestJob for the |request| wich will read data from
-  // the |aw_web_resource_response| structure (instead of going to the network
-  // or to the cache).
-  // The newly created job takes ownership of |aw_web_resource_response|.
-  static net::URLRequestJob* CreateJobFor(
-      scoped_ptr<AwWebResourceResponse> aw_web_resource_response,
-      net::URLRequest* request,
-      net::NetworkDelegate* network_delegate);
+  // Instructs the job that the result will be provided from the embedder
+  // (via AwWebResourceResponse) rather than from the network.
+  // The job takes ownership of |aw_web_resource_response|.
+  static void JobDeliverResponseFromEmbedder(
+    AndroidStreamReaderURLRequestJob* job,
+    scoped_ptr<AwWebResourceResponse> aw_web_resource_response);
 
  protected:
   AwWebResourceResponse() {}