angler-fishThe Vulnerability History Project

[Extensions] Rework inline installation observation

      Instead of observing through the WebstoreAPI, observe directly in the TabHelper.
This is a great deal less code, more direct, and also fixes a lifetime issue
with the TabHelper being deleted before the inline installation completes.

BUG=613949

Review-Url: https://codereview.chromium.org/2103663002
Cr-Commit-Position: refs/heads/master@{#403188}
    
commit d30a8bd191f17b61938fc87890bffc80049b0774
+141
+104
+2
+21 -114
-12
-28
+20 -14
+2
-2
-20
-8
-50
expand_less