Ryan Hunt 0d69472e8b Bug 1500257 part 4 - Modify nsFrameLoader to create PRemoteFrame when enabled via pref and attribute. r=qdot
This commit hooks up nsFrameLoader in the child process to use the
PRemoteFrame protocol to support remote iframes. This is only activated
when a special pref is set, and the iframe has a marker attribute on it.

For example:
<iframe fission/>

In the future, we should unify nsFrameLoader to operate on a common
interface between the parent process top-level browser, and child
process subframe case. This commit just adds a new member that can
be used instead of mRemoteBrowser, when appropriate. IsRemoteFrame()
will return true for both cases.

Differential Revision: https://phabricator.services.mozilla.com/D17444

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extra : source : e33b9de7283e5fb6441e118b25af8d4ac3411bf2
extra : intermediate-source : 697a9159e0d260118ee6ebd34948d187a8c5359f
2019-01-23 10:56:27 -06:00
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