Add different error codes for getUserMedia.

content/public/browser/web_contents_delegate.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/public/browser/web_contents_delegate.h"
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/singleton.h"
 #include "content/public/browser/render_view_host.h"
@@ skipping 142 matching lines @@
     WebContents* web_contents,
     SkColor color,
     const std::vector<ColorSuggestion>& suggestions) {
   return NULL;
 }
 
 void WebContentsDelegate::RequestMediaAccessPermission(
     WebContents* web_contents,
     const MediaStreamRequest& request,
     const MediaResponseCallback& callback) {
-  callback.Run(MediaStreamDevices(), scoped_ptr<MediaStreamUI>());
+  callback.Run(MediaStreamDevices(),
+               MEDIA_DEVICE_INVALID_STATE,
+               scoped_ptr<MediaStreamUI>());
 }
 
 bool WebContentsDelegate::RequestPpapiBrokerPermission(
     WebContents* web_contents,
     const GURL& url,
     const base::FilePath& plugin_path,
     const base::Callback<void(bool)>& callback) {
   return false;
 }
 
@@ skipping 14 matching lines @@
   DCHECK(attached_contents_.find(web_contents) != attached_contents_.end());
   attached_contents_.erase(web_contents);
 }
 
 gfx::Size WebContentsDelegate::GetSizeForNewRenderView(
     const WebContents* web_contents) const {
   return gfx::Size();
 }
 
 }  // namespace content