Properly recreate swapped out RenderView.

This CL fixes how RenderView is recreated after a process crash. Due to not recreating the RenderFrameProxy in the case the RenderView is swapped out, the WebView ends up with no mainFrame() and crashes in various ways.

BUG=357747,544271

Review URL: https://codereview.chromium.org/1408743005

Cr-Commit-Position: refs/heads/master@{#354658}
4 files changed