Disable support for swapped out RenderFrame(Host) on desktop.
Disable support for swapped out RenderFrame(Host) on desktop.

This CL disables the usage of swapped out RenderFrame(Host) objects. Instead
RenderFrameProxy(Host) is used. Disabling is done through setting a
boolean value in checking for swapped out support and the actual code
will be removed in follow up CLs, once this one sticks and no issues are found.

Android is left alone, as troubleshooting why content_browsertests is failing
on the bots is very time consuming. Follow up patch will disable it there too.

BUG=357747

Review URL: https://codereview.chromium.org/1199313006

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#351446}

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