Change MediaStreamDevicesController::RequestPermissions to use the requesting WebContents

chrome/browser/media/webrtc/media_stream_devices_controller.h

Index: chrome/browser/media/webrtc/media_stream_devices_controller.h
diff --git a/chrome/browser/media/webrtc/media_stream_devices_controller.h b/chrome/browser/media/webrtc/media_stream_devices_controller.h
index edcaf40883dcacfab7dd75604116dd8871aa1e72..7d98c9fc27228b8004b7a5dfcd6d59545d85abf8 100644
--- a/chrome/browser/media/webrtc/media_stream_devices_controller.h
+++ b/chrome/browser/media/webrtc/media_stream_devices_controller.h
@@ -47,7 +47,6 @@ class PermissionPromptDelegate {
 class MediaStreamDevicesController : public PermissionRequest {
  public:
   static void RequestPermissions(
-      content::WebContents* web_contents,
       const content::MediaStreamRequest& request,
       const content::MediaResponseCallback& callback);
 
@@ -90,7 +89,6 @@ class MediaStreamDevicesController : public PermissionRequest {
   class PermissionPromptDelegateImpl;
 
   static void RequestPermissionsWithDelegate(
-      content::WebContents* web_contents,
       const content::MediaStreamRequest& request,
       const content::MediaResponseCallback& callback,
       internal::PermissionPromptDelegate* delegate);