894ce41180
Fixes #75084. The clamp_to_embedder setting was added in 8be16e0704873f0c9bab8c10dafe2607a00ff78f, but was not set on any of the in-editor dialogs. This patch sets `clamp_to_embedder` on editor dialogs so they cannot be dragged out of the frame. This also modifies `clamp_to_embedder` so a window is clamped to the bounds of an embedder when it pops up and when the parent is resized.