Cleanup: move WebRTC related files from chrome/browser/media to chrome/browser/media/webrtc/

chrome/browser/media/desktop_media_picker.h

-// Copyright 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 CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_PICKER_H_
-#define CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_PICKER_H_
-
-#include <memory>
-
-#include "base/callback_forward.h"
-#include "base/macros.h"
-#include "base/strings/string16.h"
-#include "content/public/browser/desktop_media_id.h"
-#include "ui/gfx/native_widget_types.h"
-
-class DesktopMediaList;
-
-namespace content {
-class WebContents;
-}
-
-// Abstract interface for desktop media picker UI. It's used by Desktop Media
-// API to let user choose a desktop media source.
-class DesktopMediaPicker {
- public:
-  typedef base::Callback<void(content::DesktopMediaID)> DoneCallback;
-
-  // Creates default implementation of DesktopMediaPicker for the current
-  // platform.
-  static std::unique_ptr<DesktopMediaPicker> Create();
-
-  DesktopMediaPicker() {}
-  virtual ~DesktopMediaPicker() {}
-
-  // Shows dialog with list of desktop media sources (screens, windows, tabs)
-  // provided by |screen_list|, |window_list| and |tab_list|.
-  // Dialog window will call |done_callback| when user chooses one of the
-  // sources or closes the dialog.
-  virtual void Show(content::WebContents* web_contents,
-                    gfx::NativeWindow context,
-                    gfx::NativeWindow parent,
-                    const base::string16& app_name,
-                    const base::string16& target_name,
-                    std::unique_ptr<DesktopMediaList> screen_list,
-                    std::unique_ptr<DesktopMediaList> window_list,
-                    std::unique_ptr<DesktopMediaList> tab_list,
-                    bool request_audio,
-                    const DoneCallback& done_callback) = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(DesktopMediaPicker);
-};
-
-#endif  // CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_PICKER_H_