Override IsRedirectResponse in extension protocols

extensions/browser/extension_protocols.cc

Index: extensions/browser/extension_protocols.cc
diff --git a/extensions/browser/extension_protocols.cc b/extensions/browser/extension_protocols.cc
index 351047ecf844c19ef3e7a9a641ff31478cbc63eb..6bbd608bda756ae024478c025451e8c45a07c981 100644
--- a/extensions/browser/extension_protocols.cc
+++ b/extensions/browser/extension_protocols.cc
@@ -214,6 +214,11 @@ class URLRequestExtensionJob : public net::URLRequestFileJob {
     DCHECK(posted);
   }
 
+  virtual bool IsRedirectResponse(GURL* location,
+                                  int* http_status_code) override {
+    return false;
+  }
+
   virtual void SetExtraRequestHeaders(
       const net::HttpRequestHeaders& headers) override {
     // TODO(asargent) - we'll need to add proper support for range headers.