--- a/layout/base/MobileViewportManager.cpp
+++ b/layout/base/MobileViewportManager.cpp
@@ -194,17 +194,17 @@ MobileViewportManager::UpdateResolution(
 {
   CSSToLayoutDeviceScale cssToDev =
       mPresShell->GetPresContext()->CSSToDevPixelScale();
   LayoutDeviceToLayerScale res(mPresShell->GetResolution());
 
   if (mIsFirstPaint) {
     CSSToScreenScale defaultZoom;
     if (mRestoreResolution) {
-    LayoutDeviceToLayerScale restoreResolution(mRestoreResolution.value());
+      LayoutDeviceToLayerScale restoreResolution(mRestoreResolution.value());
       if (mRestoreDisplaySize) {
         CSSSize prevViewport = mDocument->GetViewportInfo(mRestoreDisplaySize.value()).GetSize();
         float restoreDisplayWidthChangeRatio = (mRestoreDisplaySize.value().width > 0)
           ? (float)aDisplaySize.width / (float)mRestoreDisplaySize.value().width : 1.0f;
 
         restoreResolution =
           ScaleResolutionWithDisplayWidth(restoreResolution,
                                           restoreDisplayWidthChangeRatio,