Revert of Aura Android: ShowBrowserSignin is not defined for Android, use NOTIMPLEMENTED for now

Revert of Aura Android: ShowBrowserSignin is not defined for Android, use NOTIMPLEMENTED for now (patchset #2 id:20001 of https://codereview.chromium.org/1465953003/ )

Reason for revert:
We dont need to support Aura Android at current stage. Revert related code.

Original issue's description:
> Aura Android: ShowBrowserSignin is not defined for Android, use NOTIMPLEMENTED for now
> 
> BUG=557285
> 
> Committed: https://crrev.com/b21a4e021fd5e71ecd0a55861f3500f007507986
> Cr-Commit-Position: refs/heads/master@{#361133}

TBR=mfomitchev@chromium.org,finnur@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=557285

[bshe, 2016-01-05 19:38:18]

Created Revert of Aura Android: ShowBrowserSignin is not defined for Android,
use NOTIMPLEMENTED for now

[commit-bot: I haz the power, 2016-01-05 19:40:49]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1561723002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1561723002/1

[commit-bot: I haz the power, 2016-01-05 19:43:30]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-01-05 19:43:31]

Failed to apply patch for
chrome/browser/ui/views/extensions/extension_installed_bubble_view.cc:
While running git apply --index -3 -p1;
  error: patch failed:
chrome/browser/ui/views/extensions/extension_installed_bubble_view.cc:286
  Falling back to three-way merge...
  Applied patch to
'chrome/browser/ui/views/extensions/extension_installed_bubble_view.cc' with
conflicts.
  U chrome/browser/ui/views/extensions/extension_installed_bubble_view.cc

Patch:      
chrome/browser/ui/views/extensions/extension_installed_bubble_view.cc
Index: chrome/browser/ui/views/extensions/extension_installed_bubble_view.cc
diff --git
a/chrome/browser/ui/views/extensions/extension_installed_bubble_view.cc
b/chrome/browser/ui/views/extensions/extension_installed_bubble_view.cc
index
cdc3df7112b61c0bbc09fdbaa340ea9714077258..e06a3567edc3df866d5e7fdddd6cf903e5d53f7f
100644
--- a/chrome/browser/ui/views/extensions/extension_installed_bubble_view.cc
+++ b/chrome/browser/ui/views/extensions/extension_installed_bubble_view.cc
@@ -286,14 +286,8 @@
   GetWidget()->Close();
 
   if (source == sign_in_link_) {
-#if defined(OS_ANDROID)
-    // TODO(bshe): Figure out what to do on Android platform. See
-    // crbug.com/559340.
-    NOTIMPLEMENTED();
-#else
     chrome::ShowBrowserSignin(
         browser_, signin_metrics::SOURCE_EXTENSION_INSTALL_BUBBLE);
-#endif
     return;
   }

[commit-bot: I haz the power, 2016-01-05 19:45:23]

The CQ bit was unchecked by commit-bot@chromium.org

[bshe, 2016-01-05 19:53:19]

close without submit.

The change is not in TOT anymore. So we dont need to revert.

[bshe, 2016-01-05 19:53:25]

Description was changed from

==========
Revert of Aura Android: ShowBrowserSignin is not defined for Android, use
NOTIMPLEMENTED for now (patchset #2 id:20001 of
https://codereview.chromium.org/1465953003/ )

Reason for revert:
We dont need to support Aura Android at current stage. Revert related code.

Original issue's description:
> Aura Android: ShowBrowserSignin is not defined for Android, use NOTIMPLEMENTED
for now
> 
> BUG=557285
> 
> Committed: https://crrev.com/b21a4e021fd5e71ecd0a55861f3500f007507986
> Cr-Commit-Position: refs/heads/master@{#361133}

TBR=mfomitchev@chromium.org,finnur@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=557285
==========

to

==========
Revert of Aura Android: ShowBrowserSignin is not defined for Android, use
NOTIMPLEMENTED for now (patchset #2 id:20001 of
https://codereview.chromium.org/1465953003/ )

Reason for revert:
We dont need to support Aura Android at current stage. Revert related code.

Original issue's description:
> Aura Android: ShowBrowserSignin is not defined for Android, use NOTIMPLEMENTED
for now
> 
> BUG=557285
> 
> Committed: https://crrev.com/b21a4e021fd5e71ecd0a55861f3500f007507986
> Cr-Commit-Position: refs/heads/master@{#361133}

TBR=mfomitchev@chromium.org,finnur@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=557285
==========