Bug 1797805: Run clang-format on layout directory. r=dshin

This patch doesn't change behavior.  The changes were auto-generated by the
following command:
    ./mach clang-format -p layout/

Differential Revision: https://phabricator.services.mozilla.com/D160552

layout/base/PresShell.cpp

@@ -3784,7 +3784,7 @@ bool PresShell::ScrollFrameIntoView(
     const nsPoint pos = aFrame->GetPosition();
     const nsPoint normalPos = aFrame->GetNormalPosition();
     if (pos == normalPos) {
-      return; // Frame is not stuck.
+      return;  // Frame is not stuck.
     }
     // If we're targetting a sticky element, make sure not to apply
     // scroll-padding on the direction we're stuck.