Fix search results being clipped in app list.
Fix search results being clipped in app list.

This CL fixes an issue where the search results page was being clipped
incorrectly, using the last frame's bounds to clip the page. This is
fixed by moving the clipping after the page bounds are set.

BUG=474188
TBR=mgiuca@chromium.org

Review URL: https://codereview.chromium.org/1071083002

Cr-Commit-Position: refs/heads/master@{#324581}
(cherry picked from commit f007b8d0eea91d186bf62f1c25d518d1c0d02f7a)

Review URL: https://codereview.chromium.org/1082643002

Cr-Commit-Position: fe94940391158563b8e4cf7888f93321f554af93@{#55}
Cr-Branched-From: 9fdd9ec11ee753dedeffe15e7e822b13445dc287@{#323860}

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