Replace FrameMsg_DeleteProxy with UnfreezableleFrameMsg_DeleteProxy

This CL replaces FrameMsg_DeleteProxy with
UnfreezableFrameMsg_DeleteProxy, so that it is always executed and not
frozen even when the frame is frozen. This IPC is triggered when bfcache
eviction happens and has to be executed.

Bug: 978742
Change-Id: I236f3018d9ceae9d77ed7d30bdfca1d239ec5b8d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1687270
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Yuzu Saijo <yuzus@chromium.org>
Cr-Commit-Position: refs/heads/master@{#677634}
4 files changed