DevTools: support JSONP mode in /json remote debugging discovery.

content/browser/debugger/devtools_http_handler_impl.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 "content/browser/debugger/devtools_http_handler_impl.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 410 matching lines @@
       std::string devtools_frontend_url = GetFrontendURLInternal(i->id.c_str(),
                                                                  host);
       page_info->SetString("devtoolsFrontendUrl", devtools_frontend_url);
     }
   }
 
   std::string response;
   base::JSONWriter::WriteWithOptions(&json_pages_list,
                                      base::JSONWriter::OPTIONS_PRETTY_PRINT,
                                      &response);
-  Send200(connection_id, response, "application/json; charset=UTF-8");
+
+  size_t jsonp_pos = info.path.find("?jsonp=");
+  if (jsonp_pos == std::string::npos) {
+    Send200(connection_id, response, "application/json; charset=UTF-8");
+    return;
+  }
+
+  std::string jsonp = info.path.substr(jsonp_pos + 7);
+  response = StringPrintf("%s(%s);", jsonp.c_str(), response.c_str());
+  Send200(connection_id, response, "text/javascript; charset=UTF-8");
 }
 
 void DevToolsHttpHandlerImpl::OnWebSocketRequestUI(
     int connection_id,
     const net::HttpServerRequestInfo& request) {
   std::string prefix = "/devtools/page/";
   size_t pos = request.path.find(prefix);
   if (pos != 0) {
     Send404(connection_id);
     return;
@@ skipping 194 matching lines @@
 void DevToolsHttpHandlerImpl::AcceptWebSocket(
     int connection_id,
     const net::HttpServerRequestInfo& request) {
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&net::HttpServer::AcceptWebSocket, server_.get(),
                  connection_id, request));
 }
 
 }  // namespace content