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This CL allows PWA title bars to show the manage passwords icon
by moving it from LocationBarView to PageActionIconContainerView.

PWA title bar:
Before: https://bugs.chromium.org/p/chromium/issues/attachment?aid=368396&signed_aid=_t4hsG2GFjiEe__8vT-LtQ==&inline=1
After: https://bugs.chromium.org/p/chromium/issues/attachment?aid=368397&signed_aid=q2ASdnVuMGpsPn9GAjrdmg==&inline=1

Location bar (no diff):
Before: https://bugs.chromium.org/p/chromium/issues/attachment?aid=368398&signed_aid=hPiZlkK4KcRMeaLejACitg==&inline=1
After: https://bugs.chromium.org/p/chromium/issues/attachment?aid=368399&signed_aid=q0PRCcZ5Fi0BRFv3oqcSQA==&inline=1

Bug: 788051
Change-Id: I54508125c77858bb8c40e80a0971fb6f9ddc9384
Reviewed-on: https://chromium-review.googlesource.com/c/1345672
Commit-Queue: Alan Cutter <alancutter@chromium.org>
Reviewed-by: Bret Sepulveda <bsep@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611493}