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Previously, updating bookmark bar could have cause page/devtools resize.
With new layout logic implemented in DevToolsController, resizing
page/devtools after everything else guarantees single resize operation.

BUG=331295

Review URL: https://codereview.chromium.org/131093004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245628 0039d316-1c4b-4281-b951-d872f2087c98