Add initial support for runtime permissions in android M.

chrome/browser/media/media_stream_infobar_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 "chrome/browser/media/media_stream_infobar_delegate.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/infobars/infobar_service.h"
@@ skipping 48 matching lines @@
     infobars::InfoBar* old_infobar = infobar_service->infobar_at(i);
     if (old_infobar->delegate()->AsMediaStreamInfoBarDelegate()) {
       infobar_service->ReplaceInfoBar(old_infobar, infobar.Pass());
       return true;
     }
   }
   infobar_service->AddInfoBar(infobar.Pass());
   return true;
 }
 
+bool MediaStreamInfoBarDelegate::IsRequestingVideoAccess() const {
+  return controller_->HasVideo();
+}
+
+bool MediaStreamInfoBarDelegate::IsRequestingMicrophoneAccess() const {
+  return controller_->HasAudio();
+}
+
 MediaStreamInfoBarDelegate::MediaStreamInfoBarDelegate(
     scoped_ptr<MediaStreamDevicesController> controller)
     : ConfirmInfoBarDelegate(),
       controller_(controller.Pass()) {
   DCHECK(controller_.get());
   DCHECK(controller_->HasAudio() || controller_->HasVideo());
 }
 
 infobars::InfoBarDelegate::Type
 MediaStreamInfoBarDelegate::GetInfoBarType() const {
@@ skipping 62 matching lines @@
     WindowOpenDisposition disposition) {
   InfoBarService::WebContentsFromInfoBar(infobar())->OpenURL(
       content::OpenURLParams(
           GURL(chrome::kMediaAccessLearnMoreUrl),
           content::Referrer(),
           (disposition == CURRENT_TAB) ? NEW_FOREGROUND_TAB : disposition,
           ui::PAGE_TRANSITION_LINK, false));
 
   return false;  // Do not dismiss the info bar.
 }