Allow URL requests for object/embed tags to be intercepted as streams.

extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.cc

 // Copyright 2014 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 "extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.h"
 
 #include "content/public/renderer/render_frame.h"
 #include "extensions/common/extension_messages.h"
 #include "extensions/common/guest_view/guest_view_constants.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
@@ skipping 27 matching lines @@
   html_string_ += std::string(data, data_length);
 }
 
 void MimeHandlerViewContainer::Ready() {
   blink::WebFrame* frame = render_frame()->GetWebFrame();
   blink::WebURLLoaderOptions options;
   // The embedded plugin is allowed to be cross-origin.
   options.crossOriginRequestPolicy =
       blink::WebURLLoaderOptions::CrossOriginRequestPolicyAllow;
   DCHECK(!loader_);
-  loader_.reset(frame->createAssociatedURLLoader());
+  loader_.reset(frame->createAssociatedURLLoader(options));
 
-  // TODO(raymes): Currently this URL request won't be correctly intercepted as
-  // a stream.
-  loader_->loadAsynchronously(blink::WebURLRequest(original_url_), this);
+  blink::WebURLRequest request(original_url_);
+  request.setRequestContext(blink::WebURLRequest::RequestContextObject);
+  loader_->loadAsynchronously(request, this);
 }
 
 bool MimeHandlerViewContainer::HandlesMessage(const IPC::Message& message) {
   return message.type() == ExtensionMsg_CreateMimeHandlerViewGuestACK::ID;
 }
 
 bool MimeHandlerViewContainer::OnMessage(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(MimeHandlerViewContainer, message)
     IPC_MESSAGE_HANDLER(ExtensionMsg_CreateMimeHandlerViewGuestACK,
@@ skipping 32 matching lines @@
   // Parse the stream URL to ensure it's valid.
   GURL stream_url(html_string_);
 
   DCHECK_NE(element_instance_id(), guestview::kInstanceIDNone);
   render_frame()->Send(new ExtensionHostMsg_CreateMimeHandlerViewGuest(
       routing_id(), stream_url.spec(), original_url_.spec(), mime_type_,
       element_instance_id()));
 }
 
 }  // namespace extensions