Fix hanging get requests

components/dom_distiller/content/dom_distiller_viewer_source.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 "components/dom_distiller/content/dom_distiller_viewer_source.h"
 
 #include <sstream>
 #include <string>
 #include <vector>
 
@@ skipping 304 matching lines @@
   } else if (kViewerJsPath == path) {
     std::string js = viewer::GetJavaScript();
     callback.Run(base::RefCountedString::TakeString(&js));
     return;
   } else if (kViewerViewOriginalPath == path) {
     content::RecordAction(base::UserMetricsAction("DomDistiller_ViewOriginal"));
     callback.Run(NULL);
     return;
   } else if (kFeedbackBad == path) {
     FeedbackReporter::ReportQuality(false);
+    callback.Run(NULL);
     if (!external_feedback_reporter_)
       return;
     content::WebContents* contents =
         content::WebContents::FromRenderFrameHost(render_frame_host);
     external_feedback_reporter_->ReportExternalFeedback(
         contents, contents->GetURL(), false);
     return;
   } else if (kFeedbackGood == path) {
     FeedbackReporter::ReportQuality(true);
+    callback.Run(NULL);
     return;
   }
   content::WebContents* web_contents =
       content::WebContents::FromRenderFrameHost(render_frame_host);
   DCHECK(web_contents);
   // An empty |path| is invalid, but guard against it. If not empty, assume
   // |path| starts with '?', which is stripped away.
   const std::string path_after_query_separator =
       path.size() > 0 ? path.substr(1) : "";
   RequestViewerHandle* request_viewer_handle = new RequestViewerHandle(
@@ skipping 39 matching lines @@
 std::string DomDistillerViewerSource::GetContentSecurityPolicyObjectSrc()
     const {
   return "object-src 'none'; style-src 'self' https://fonts.googleapis.com;";
 }
 
 std::string DomDistillerViewerSource::GetContentSecurityPolicyFrameSrc() const {
   return "frame-src *;";
 }
 
 }  // namespace dom_distiller