Given that this is occurring at device-setup time, it really would have to be that the user is restoring to the same account with which they were syncing on the old device, right?

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/074761b1a1d52efdccd1188841a821fb91249d9e

commit 074761b1a1d52efdccd1188841a821fb91249d9e
Author: aberent <aberent@chromium.org>
Date: Wed Jun 01 14:22:23 2016

[Android backup] Restore nothing if signed in user isn't valid

If the user was previously not signed in, or if the account doesn't
exist on the new device, then restore nothing.

BUG= 613147 

Review-Url: https://codereview.chromium.org/1990233002
Cr-Commit-Position: refs/heads/master@{#397135}

[modify] https://crrev.com/074761b1a1d52efdccd1188841a821fb91249d9e/chrome/android/java/AndroidManifest.xml
[modify] https://crrev.com/074761b1a1d52efdccd1188841a821fb91249d9e/chrome/android/java/src/org/chromium/chrome/browser/ChromeBackupAgent.java
[modify] https://crrev.com/074761b1a1d52efdccd1188841a821fb91249d9e/chrome/android/javatests/src/org/chromium/chrome/browser/ChromeBackupIntegrationTest.java
[modify] https://crrev.com/074761b1a1d52efdccd1188841a821fb91249d9e/chrome/android/junit/src/org/chromium/chrome/browser/ChromeBackupAgentTest.java

Your change meets the bar and is auto-approved for M52 (branch: 2743)

The following revision refers to this bug:
  https://chrome-internal.googlesource.com/clank/internal/apps/+/3d65aadfa547a44aa7d51a2f1b77882bc812af14

commit 3d65aadfa547a44aa7d51a2f1b77882bc812af14
Author: Anthony Berent <aberent@chromium.org>
Date: Fri May 20 17:05:23 2016

This issue has been approved for a merge. Please merge the fix to any appropriate branches as soon as possible!

If all merges have been completed, please remove any remaining Merge-Approved labels from this issue.

Thanks for your time! To disable nags, add the Disable-Nags label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/bfdec1b37c51a44ac71730af24f881713d476a9c

commit bfdec1b37c51a44ac71730af24f881713d476a9c
Author: Anthony Berent <aberent@chromium.org>
Date: Tue Jun 07 10:16:26 2016

[Android backup] Restore nothing if signed in user isn't valid

If the user was previously not signed in, or if the account doesn't
exist on the new device, then restore nothing.

BUG= 613147 

Review-Url: https://codereview.chromium.org/1990233002
Cr-Commit-Position: refs/heads/master@{#397135}
(cherry picked from commit 074761b1a1d52efdccd1188841a821fb91249d9e)

Review URL: https://codereview.chromium.org/2047673002 .

Cr-Commit-Position: refs/branch-heads/2743@{#260}
Cr-Branched-From: 2b3ae3b8090361f8af5a611712fc1a5ab2de53cb-refs/heads/master@{#394939}

[modify] https://crrev.com/bfdec1b37c51a44ac71730af24f881713d476a9c/chrome/android/java/AndroidManifest.xml
[modify] https://crrev.com/bfdec1b37c51a44ac71730af24f881713d476a9c/chrome/android/java/src/org/chromium/chrome/browser/ChromeBackupAgent.java
[modify] https://crrev.com/bfdec1b37c51a44ac71730af24f881713d476a9c/chrome/android/javatests/src/org/chromium/chrome/browser/ChromeBackupIntegrationTest.java
[modify] https://crrev.com/bfdec1b37c51a44ac71730af24f881713d476a9c/chrome/android/junit/src/org/chromium/chrome/browser/ChromeBackupAgentTest.java

The following revision refers to this bug:
  https://chrome-internal.googlesource.com/clank/internal/apps/+/f9960f42626f002ab2a55bfda934a02dac92b278

commit f9960f42626f002ab2a55bfda934a02dac92b278
Author: Anthony Berent <aberent@chromium.org>
Date: Fri May 20 17:05:23 2016

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e3197328550ba7ecc2b73721e5fef7c68d6a1bf9

commit e3197328550ba7ecc2b73721e5fef7c68d6a1bf9
Author: Bo Liu <boliu@chromium.org>
Date: Wed Jun 08 01:38:02 2016

[M52] Android build fix

For https://codereview.chromium.org/2047673002/

BUG= 613147 

Review URL: https://codereview.chromium.org/2043223002 .

Cr-Commit-Position: refs/branch-heads/2743@{#272}
Cr-Branched-From: 2b3ae3b8090361f8af5a611712fc1a5ab2de53cb-refs/heads/master@{#394939}

[modify] https://crrev.com/e3197328550ba7ecc2b73721e5fef7c68d6a1bf9/chrome/android/java/src/org/chromium/chrome/browser/ChromeBackupAgent.java

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5a45a29aa73ff6a6c882511c764011ddf73b0cd1

commit 5a45a29aa73ff6a6c882511c764011ddf73b0cd1
Author: Bo Liu <boliu@chromium.org>
Date: Wed Jun 08 01:50:54 2016

[M52] Fix android test compile

For https://codereview.chromium.org/2047673002/ x2

BUG= 613147 

Review URL: https://codereview.chromium.org/2043233002 .

Cr-Commit-Position: refs/branch-heads/2743@{#273}
Cr-Branched-From: 2b3ae3b8090361f8af5a611712fc1a5ab2de53cb-refs/heads/master@{#394939}

[modify] https://crrev.com/5a45a29aa73ff6a6c882511c764011ddf73b0cd1/chrome/android/javatests/src/org/chromium/chrome/browser/ChromeBackupIntegrationTest.java
[modify] https://crrev.com/5a45a29aa73ff6a6c882511c764011ddf73b0cd1/chrome/android/junit/src/org/chromium/chrome/browser/ChromeBackupAgentTest.java

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/bfdec1b37c51a44ac71730af24f881713d476a9c

commit bfdec1b37c51a44ac71730af24f881713d476a9c
Author: Anthony Berent <aberent@chromium.org>
Date: Tue Jun 07 10:16:26 2016

[Android backup] Restore nothing if signed in user isn't valid

If the user was previously not signed in, or if the account doesn't
exist on the new device, then restore nothing.

BUG= 613147 

Review-Url: https://codereview.chromium.org/1990233002
Cr-Commit-Position: refs/heads/master@{#397135}
(cherry picked from commit 074761b1a1d52efdccd1188841a821fb91249d9e)

Review URL: https://codereview.chromium.org/2047673002 .

Cr-Commit-Position: refs/branch-heads/2743@{#260}
Cr-Branched-From: 2b3ae3b8090361f8af5a611712fc1a5ab2de53cb-refs/heads/master@{#394939}

[modify] https://crrev.com/bfdec1b37c51a44ac71730af24f881713d476a9c/chrome/android/java/AndroidManifest.xml
[modify] https://crrev.com/bfdec1b37c51a44ac71730af24f881713d476a9c/chrome/android/java/src/org/chromium/chrome/browser/ChromeBackupAgent.java
[modify] https://crrev.com/bfdec1b37c51a44ac71730af24f881713d476a9c/chrome/android/javatests/src/org/chromium/chrome/browser/ChromeBackupIntegrationTest.java
[modify] https://crrev.com/bfdec1b37c51a44ac71730af24f881713d476a9c/chrome/android/junit/src/org/chromium/chrome/browser/ChromeBackupAgentTest.java

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e3197328550ba7ecc2b73721e5fef7c68d6a1bf9

commit e3197328550ba7ecc2b73721e5fef7c68d6a1bf9
Author: Bo Liu <boliu@chromium.org>
Date: Wed Jun 08 01:38:02 2016

[M52] Android build fix

For https://codereview.chromium.org/2047673002/

BUG= 613147 

Review URL: https://codereview.chromium.org/2043223002 .

Cr-Commit-Position: refs/branch-heads/2743@{#272}
Cr-Branched-From: 2b3ae3b8090361f8af5a611712fc1a5ab2de53cb-refs/heads/master@{#394939}

[modify] https://crrev.com/e3197328550ba7ecc2b73721e5fef7c68d6a1bf9/chrome/android/java/src/org/chromium/chrome/browser/ChromeBackupAgent.java

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5a45a29aa73ff6a6c882511c764011ddf73b0cd1

commit 5a45a29aa73ff6a6c882511c764011ddf73b0cd1
Author: Bo Liu <boliu@chromium.org>
Date: Wed Jun 08 01:50:54 2016

[M52] Fix android test compile

For https://codereview.chromium.org/2047673002/ x2

BUG= 613147 

Review URL: https://codereview.chromium.org/2043233002 .

Cr-Commit-Position: refs/branch-heads/2743@{#273}
Cr-Branched-From: 2b3ae3b8090361f8af5a611712fc1a5ab2de53cb-refs/heads/master@{#394939}

[modify] https://crrev.com/5a45a29aa73ff6a6c882511c764011ddf73b0cd1/chrome/android/javatests/src/org/chromium/chrome/browser/ChromeBackupIntegrationTest.java
[modify] https://crrev.com/5a45a29aa73ff6a6c882511c764011ddf73b0cd1/chrome/android/junit/src/org/chromium/chrome/browser/ChromeBackupAgentTest.java