Set PPAPI plugins' requests' contexts to 'WebURLRequest::RequestContextPlugin'.

content/renderer/pepper/pepper_url_loader_host.cc

 // Copyright (c) 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.
 
 #include "content/renderer/pepper/pepper_url_loader_host.h"
 
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 #include "content/renderer/pepper/renderer_ppapi_host_impl.h"
 #include "content/renderer/pepper/url_request_info_util.h"
 #include "content/renderer/pepper/url_response_info_util.h"
@@ skipping 240 matching lines @@
   if (!frame)
     return PP_ERROR_FAILED;
 
   WebURLRequest web_request;
   if (!CreateWebURLRequest(
           pp_instance(), &filled_in_request_data, frame, &web_request)) {
     return PP_ERROR_FAILED;
   }
 
   web_request.setTargetType(WebURLRequest::TargetIsObject);
+  web_request.setRequestContext(WebURLRequest::RequestContextPlugin);
   web_request.setRequestorProcessID(renderer_ppapi_host_->GetPluginPID());
 
   WebURLLoaderOptions options;
   if (has_universal_access_) {
     options.allowCredentials = true;
     options.crossOriginRequestPolicy =
         WebURLLoaderOptions::CrossOriginRequestPolicyAllow;
   } else {
     // All other HTTP requests are untrusted.
     options.untrustedHTTP = true;
@@ skipping 157 matching lines @@
     ppapi::proxy::ResourceMessageReplyParams params;
     SendUpdateToPlugin(new PpapiPluginMsg_URLLoader_UpdateProgress(
         record_upload ? bytes_sent_ : -1,
         record_upload ? total_bytes_to_be_sent_ : -1,
         record_download ? bytes_received_ : -1,
         record_download ? total_bytes_to_be_received_ : -1));
   }
 }
 
 }  // namespace content