Pepper: Add a X-Requested-With header to URL requests done for Pepper plugins.

content/common/resource_dispatcher_unittest.cc

 // Copyright (c) 2012 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.
 
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/process.h"
@@ skipping 158 matching lines @@
     request_info.first_party_for_cookies = GURL(test_page_url);
     request_info.referrer = GURL();
     request_info.headers = std::string();
     request_info.load_flags = 0;
     request_info.requestor_pid = 0;
     request_info.request_type = ResourceType::SUB_RESOURCE;
     request_info.appcache_host_id = appcache::kNoHostId;
     request_info.routing_id = 0;
     RequestExtraData extra_data(WebKit::WebReferrerPolicyDefault,
                                 WebKit::WebString(),
+                                WebKit::WebString(),
                                 true, 0, false, -1, true,
                                 PAGE_TRANSITION_LINK, -1, -1);
     request_info.extra_data = &extra_data;
 
     return dispatcher_->CreateBridge(request_info);
   }
 
   std::vector<IPC::Message> message_queue_;
   static scoped_ptr<ResourceDispatcher> dispatcher_;
 };
@@ skipping 239 matching lines @@
   ResourceResponseHead response_head;
   response_head.error_code = net::OK;
 
   PerformTest(response_head);
 
   EXPECT_EQ(0, response_info().load_timing.base_ticks.ToInternalValue());
   EXPECT_EQ(-1, response_info().load_timing.dns_start);
 }
 
 }  // namespace content