Add initial support for runtime permissions in android M.

chrome/browser/media/media_stream_infobar_delegate.h

 // 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.
 
 #ifndef CHROME_BROWSER_MEDIA_MEDIA_STREAM_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_MEDIA_MEDIA_STREAM_INFOBAR_DELEGATE_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 12 matching lines @@
 
   // Handles a permission request (in |request|) for |web_contents|.  If this
   // involves prompting the user, creates a media stream infobar and delegate,
   // then checks for an existing infobar for |web_contents| and replaces it if
   // found, or just adds the new infobar otherwise.  Returns whether an infobar
   // was created.
   static bool Create(content::WebContents* web_contents,
                      const content::MediaStreamRequest& request,
                      const content::MediaResponseCallback& callback);
 
+  bool IsRequestingVideoAccess() const;
+  bool IsRequestingMicrophoneAccess() const;
+
  private:
   friend class WebRtcTestBase;
 
   explicit MediaStreamInfoBarDelegate(
       scoped_ptr<MediaStreamDevicesController> controller);
 
   // ConfirmInfoBarDelegate:
   Type GetInfoBarType() const override;
   int GetIconID() const override;
   void InfoBarDismissed() override;
   MediaStreamInfoBarDelegate* AsMediaStreamInfoBarDelegate() override;
   base::string16 GetMessageText() const override;
   base::string16 GetButtonLabel(InfoBarButton button) const override;
   bool Accept() override;
   bool Cancel() override;
   base::string16 GetLinkText() const override;
   bool LinkClicked(WindowOpenDisposition disposition) override;
 
   scoped_ptr<MediaStreamDevicesController> controller_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamInfoBarDelegate);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_MEDIA_STREAM_INFOBAR_DELEGATE_H_