WebViewPlugin: Make WebView resize take place synchronously.

WebViewPlugin: Make WebView resize take place synchronously.

Previously, we committed https://codereview.chromium.org/2164753003 to
fix a crash. That patch made geometry-triggered updates asynchronous.

However, this leads to visual artifacts. This CL makes some of those
operations synchronous again, but should leave the crashy parts still
async.

BUG=631428
Review-Url: https://codereview.chromium.org/2205693007
Cr-Commit-Position: refs/heads/master@{#409709}
(cherry picked from commit 7d02278211e46de5b07ac2cdaf26eecc3bf224bb)

Committed: https://chromium.googlesource.com/chromium/src/+/501e16d2ff332db2b65240935eec936dab69a02b

[tommycli, 2016-08-05 17:14:31]

Description was changed from

==========
WebViewPlugin: Make WebView resize take place synchronously.

Previously, we committed https://codereview.chromium.org/2164753003 to
fix a crash. That patch made geometry-triggered updates asynchronous.

However, this leads to visual artifacts. This CL makes some of those
operations synchronous again, but should leave the crashy parts still
async.

BUG=631428

Review-Url: https://codereview.chromium.org/2205693007
Cr-Commit-Position: refs/heads/master@{#409709}
(cherry picked from commit 7d02278211e46de5b07ac2cdaf26eecc3bf224bb)
==========

to

==========
WebViewPlugin: Make WebView resize take place synchronously.

Previously, we committed https://codereview.chromium.org/2164753003 to
fix a crash. That patch made geometry-triggered updates asynchronous.

However, this leads to visual artifacts. This CL makes some of those
operations synchronous again, but should leave the crashy parts still
async.

BUG=631428

Review-Url: https://codereview.chromium.org/2205693007
Cr-Commit-Position: refs/heads/master@{#409709}
(cherry picked from commit 7d02278211e46de5b07ac2cdaf26eecc3bf224bb)

Committed:
https://chromium.googlesource.com/chromium/src/+/501e16d2ff332db2b65240935eec...
==========

[tommycli, 2016-08-05 17:14:33]

Committed patchset #1 (id:1) manually as
501e16d2ff332db2b65240935eec936dab69a02b.