commit 8542185bbb9fd0c0e7d0240c64403d2e4cea39f2
author nasko <nasko@chromium.org> Thu May 21 22:53:48 2015
committer Commit bot <commit-bot@chromium.org> Thu May 21 22:54:12 2015
tree 0fc9a125f9d5f46531b40745326efb55fd2af496
parent a80a45a87dd90e813fbf44b41eb9fa95e9e71b89

Add ref-count on RenderViewHost for each new RenderFrameProxyHost.

Currently, only RenderFrameHosts are ref-counting the associated RenderViewHost.
Since it is possible to have a RenderViewHost with no associated RenderFrameHost
(for example a cross-process window opener/openee relationship), it should
be taken into account that the associated RenderFrameProxyHost is also
a ref-counting the RenderViewHost.
The goal of this CL is to allow for that, even though it isn't currently
the case. It is a small step towards removing swapped out RenderFrameHosts.

BUG=357747

Review URL: https://codereview.chromium.org/1150793002

Cr-Commit-Position: refs/heads/master@{#331016}