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This CL adds the blue round circle highlight animation around the avatar
button. It reuses the ink drop hover animation but with a different color.

Whenever the animation is visible, hide the avatar sync paused/error
state, even if there is no autofill icon visible in the status chip.

Controlled by experiment flag kAutofillCreditCardUploadFeedback: No
event will be sent to avatar icon if flag is disabled.

The animation will be shown when any credit card is saved. Animation
for password save will be added later.

Bug: 964127
Change-Id: Icc386241e244a6bf9f3db271928ca19029348f81
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1784138
Commit-Queue: Siyu An <siyua@chromium.org>
Reviewed-by: Jan Krcal <jkrcal@chromium.org>
Reviewed-by: Peter Boström <pbos@chromium.org>
Reviewed-by: Christos Froussios <cfroussios@chromium.org>
Reviewed-by: Jared Saul <jsaul@google.com>
Cr-Commit-Position: refs/heads/master@{#695046}