Set RequestContextObject for PNaCl pexe fetches, to fix On-Demand update.

chrome/test/nacl/pnacl_header_test.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_TEST_NACL_PNACL_HEADER_TEST_H_
 #define CHROME_TEST_NACL_PNACL_HEADER_TEST_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/test/base/in_process_browser_test.h"
+#include "content/public/browser/resource_dispatcher_host_delegate.h"
+#include "content/public/common/resource_type.h"
 
 namespace base {
 class FilePath;
 }
 
 namespace net {
 namespace test_server {
 struct HttpRequest;
 class HttpResponse;
 }
 }
 
+using content::ResourceDispatcherHostDelegate;
+
+class TestDispatcherHostDelegate : public ResourceDispatcherHostDelegate {
+ public:
+  explicit TestDispatcherHostDelegate()
+      : ResourceDispatcherHostDelegate(), found_pnacl_header_(false) {}
+
+  virtual ~TestDispatcherHostDelegate() {}
+
+  virtual void RequestBeginning(
+      net::URLRequest* request,
+      content::ResourceContext* resource_context,
+      content::AppCacheService* appcache_service,
+      content::ResourceType resource_type,
+      ScopedVector<content::ResourceThrottle>* throttles) OVERRIDE;
+
+  bool found_pnacl_header() const { return found_pnacl_header_; }
+
+ private:
+  bool found_pnacl_header_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestDispatcherHostDelegate);
+};
+
 class PnaclHeaderTest : public InProcessBrowserTest {
  public:
   PnaclHeaderTest();
   virtual ~PnaclHeaderTest();
 
   // Run a simple test that checks that the NaCl plugin sends the right
   // headers when doing |expected_noncors| same origin pexe load requests
   // and |expected_cors| cross origin pexe load requests.
   void RunLoadTest(const std::string& url,
                    int expected_noncors,
                    int expected_cors);
 
  private:
   void StartServer();
 
   scoped_ptr<net::test_server::HttpResponse> WatchForPexeFetch(
       const net::test_server::HttpRequest& request);
 
   int noncors_loads_;
   int cors_loads_;
+  TestDispatcherHostDelegate test_delegate_;
   DISALLOW_COPY_AND_ASSIGN(PnaclHeaderTest);
 };
 
 #endif  // CHROME_TEST_NACL_PNACL_HEADER_TEST_H_