DevTools: render parsed manifest data in the resources panel.

content/renderer/devtools/devtools_agent.cc

Index: content/renderer/devtools/devtools_agent.cc
diff --git a/content/renderer/devtools/devtools_agent.cc b/content/renderer/devtools/devtools_agent.cc
index b8836832340e68ecfe6e69636f7d33a07af59c86..b718f9d7b5fa77c43e5e31fb812e30b02761d273 100644
--- a/content/renderer/devtools/devtools_agent.cc
+++ b/content/renderer/devtools/devtools_agent.cc
@@ -305,6 +305,9 @@ void DevToolsAgent::GotManifest(int session_id,
     if (error.critical)
       failed = true;
   }
+
+  WebString url = frame_->GetWebFrame()->document().manifestURL().string();
+  result->SetString("url", url);
   if (!failed)
     result->SetString("data", debug_info.raw_data);
   result->Set("errors", errors.release());