Change the assertion of background color opaqueness in BubbleFrameView to DCHECK

This is a temporary fix to the attached crash. The invariance will be
fixed in b:414655934.

Bug: b:411442010
Change-Id: I3aaf50c11d473d124fdb89558b0b806cf6e52b0f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6499055
Reviewed-by: Elly FJ <ellyjones@chromium.org>
Commit-Queue: Zoraiz Naeem <zoraiznaeem@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1453599}

ui/views/bubble/bubble_frame_view.cc

@@ -843,7 +843,8 @@ void BubbleFrameView::UpdateClientViewBackground() {
     // artifacts. Make sure this isn't the case.
     const SkColor color =
         background_color().ResolveToSkColor(GetWidget()->GetColorProvider());
-    CHECK(SkColor4f::FromColor(color).isOpaque());
+    // TODO(b:414655934): Remove this assertion.
+    DCHECK(SkColor4f::FromColor(color).isOpaque());
     client_view->SetBackground(CreateSolidBackground(color));
     client_view->SchedulePaint();
   }