Set plugin document style to fix scrollbar flickering for mime handlers.
Set plugin document style to fix scrollbar flickering for mime handlers.

Currently, for plugin documents, the plugin is sized to fit the full
frame size. When the window is resized, the frame changes first and then
the plugin resizes to match. This causes the frame to need a scrollbar
until the plugin matches the frame size. This causes the plugin to be
resized twice in quick succession. First, to the new size minus the
scrollbar width; second to the new frame size. For mime handlers, this
manifests as the mime handler frame's scrollbar jumping inwards for a
moment before snapping back to its normal position.

This CL fixes this by setting the plugin document body style to
height: 100%;
width: 100%;
overflow: hidden;
This avoids the spurious resizes currently being sent to the plugin.


BUG=451342

Review URL: https://codereview.chromium.org/902453004

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@190101 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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