[Autofill] Use user's email for converted wallet addresses.

[Autofill] Use user's email for converted wallet addresses.

Since Wallet addresses don't have an email address, the signed-in
user's email address should be used if the Wallet address is not
merged into an existing local profile.

BUG=680182
Review-Url: https://codereview.chromium.org/2671813005
Cr-Commit-Position: refs/heads/master@{#448008}
(cherry picked from commit c853dbe32cdd2b2a6699593fe8e06879568bc6db)

Review-Url: https://codereview.chromium.org/2671423002 .
Cr-Commit-Position: refs/branch-heads/2987@{#326}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed: https://chromium.googlesource.com/chromium/src/+/c36552b1dfa02ee19dc9f1bf8c80bc75d5323b1b

[sebsg, 2017-02-06 15:29:33]

Description was changed from

==========
[Autofill] Use user's email for converted wallet addresses.

Since Wallet addresses don't have an email address, the signed-in
user's email address should be used if the Wallet address is not
merged into an existing local profile.

BUG=680182

Review-Url: https://codereview.chromium.org/2671813005
Cr-Commit-Position: refs/heads/master@{#448008}
(cherry picked from commit c853dbe32cdd2b2a6699593fe8e06879568bc6db)
==========

to

==========
[Autofill] Use user's email for converted wallet addresses.

Since Wallet addresses don't have an email address, the signed-in
user's email address should be used if the Wallet address is not
merged into an existing local profile.

BUG=680182

Review-Url: https://codereview.chromium.org/2671813005
Cr-Commit-Position: refs/heads/master@{#448008}
(cherry picked from commit c853dbe32cdd2b2a6699593fe8e06879568bc6db)

Review-Url: https://codereview.chromium.org/2671423002 .
Cr-Commit-Position: refs/branch-heads/2987@{#326}
Cr-Branched-From:
ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed:
https://chromium.googlesource.com/chromium/src/+/c36552b1dfa02ee19dc9f1bf8c80...
==========

[sebsg, 2017-02-06 15:29:34]

Committed patchset #1 (id:1) manually as
c36552b1dfa02ee19dc9f1bf8c80bc75d5323b1b.

[sebsg, 2017-02-06 16:31:31]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2676343002/ by sebsg@chromium.org.

The reason for reverting is: Breakage on Clank.