Do not update widget geometry without a renderer
Do not update widget geometry without a renderer

This patch updates reportGeometry to not update without a renderer.
If the widget later gets a renderer, reportGeometry will be called as
part of reattachment.

BUG=459713

Review URL: https://codereview.chromium.org/961073003

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@191133 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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