Implement modal permission prompts for media permissions on Android.

chrome/browser/media/webrtc/media_stream_infobar_delegate_android.h

Index: chrome/browser/media/webrtc/media_stream_infobar_delegate_android.h
diff --git a/chrome/browser/media/webrtc/media_stream_infobar_delegate_android.h b/chrome/browser/media/webrtc/media_stream_infobar_delegate_android.h
index 8eccb837a652a85d0f3ebcd8dd038093c7f343fd..5ed74282b584ee518dfc44f7809c4adb5692b998 100644
--- a/chrome/browser/media/webrtc/media_stream_infobar_delegate_android.h
+++ b/chrome/browser/media/webrtc/media_stream_infobar_delegate_android.h
@@ -26,12 +26,12 @@ class MediaStreamInfoBarDelegateAndroid : public PermissionInfoBarDelegate {
   static bool Create(content::WebContents* web_contents,
                      std::unique_ptr<MediaStreamDevicesController> controller);
 
- private:
-  friend class WebRtcTestBase;
-
   MediaStreamInfoBarDelegateAndroid(
       Profile* profile,
       std::unique_ptr<MediaStreamDevicesController> controller);
+ private:
+  friend class WebRtcTestBase;
+
   ~MediaStreamInfoBarDelegateAndroid() override;
 
   // PermissionInfoBarDelegate: