Ensure that WebRTC AEC recording checkbox is not set if cancelling file dialog.

content/browser/media/webrtc_internals.h

 // Copyright (c) 2013 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.
 
 #ifndef CONTENT_BROWSER_MEDIA_WEBRTC_INTERNALS_H_
 #define CONTENT_BROWSER_MEDIA_WEBRTC_INTERNALS_H_
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/singleton.h"
 #include "base/observer_list.h"
@@ skipping 84 matching lines @@
     return aec_dump_file_path_;
   }
 
   void ResetForTesting();
 
  private:
   friend struct DefaultSingletonTraits<WebRTCInternals>;
   FRIEND_TEST_ALL_PREFIXES(WebRtcBrowserTest, CallWithAecDump);
   FRIEND_TEST_ALL_PREFIXES(WebRtcBrowserTest,
                            CallWithAecDumpEnabledThenDisabled);
+  FRIEND_TEST_ALL_PREFIXES(WebRTCInternalsTest,
+                           AecRecordingFileSelectionCanceled);
 
   WebRTCInternals();
   virtual ~WebRTCInternals();
 
   void SendUpdate(const std::string& command, base::Value* value);
 
   // NotificationObserver implementation.
   virtual void Observe(int type,
                        const NotificationSource& source,
                        const NotificationDetails& details) OVERRIDE;
 
   // ui::SelectFileDialog::Listener implementation.
   virtual void FileSelected(const base::FilePath& path,
                             int index,
                             void* unused_params) OVERRIDE;
+  virtual void FileSelectionCanceled(void* params) OVERRIDE;
 
   // Called when a renderer exits (including crashes).
   void OnRendererExit(int render_process_id);
 
 #if defined(ENABLE_WEBRTC)
   // Enables AEC dump on all render process hosts using |aec_dump_file_path_|.
   void EnableAecDumpOnAllRenderProcessHosts();
 #endif
 
   ObserverList<WebRTCInternalsUIObserver> observers_;
@@ skipping 28 matching lines @@
   scoped_refptr<ui::SelectFileDialog> select_file_dialog_;
 
   // AEC dump (diagnostic echo canceller recording) state.
   bool aec_dump_enabled_;
   base::FilePath aec_dump_file_path_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_WEBRTC_INTERNALS_H_