Bug 106292 – webdatabase: Remove the need for the ProposedDatabase mechanism.

• Component: WebCore Misc.
• Status: RESOLVED FIXED

[Mark Lam]

In DatabaseTracker.cpp, there's a FIXME that says that "We should really just pass the details into this call, rather than using m_proposedDatabases."  This change achieves that.

Here's how things used to work:
1. DatabaseTracker::canEstablishDatabase() adds a DatabaseDetail to its m_proposedDatabase list.
2. It then calls DatabaseContext::databaseExceededQuota() to give the chrome client a chance to increase the quota.
3. Next, it removes the DatabaseDetails from m_proposedDatabase to revert step 1's action.

DatabaseContext::databaseExceededQuota() eventually calls the ChromeClient.  The ChromeClient in turn calls DatabaseTracker::detailsForNameAndOrigin() to get the detail for the database we're trying to open.  Because the database may not have been added to the tracker database, detailsForNameAndOrigin() would also check the m_proposedDatabase list for the details of the database that we're trying to add, and retrieve the needed details from there.

Here's how things work with this change:
1. The ProposedDatabase mechanism has been removed completely.  Instead, DatabaseTracker::canEstablishDatabase() will call DatabaseContext::databaseExceededQuota() with the needed DatabaseDetails as an additional argument.
2. This details argument will be passed all the way to the ChromeClient where it can be accessed if needed.

[Mark Lam]

Created attachment 181629 [details]
Fix.

[Peter Beverloo (cr-android ews)]

Comment on attachment 181629 [details]
Fix.

Attachment 181629 [details] did not pass cr-android-ews (chromium-android):
Output: http://queues.webkit.org/results/15756014

[Build Bot]

Comment on attachment 181629 [details]
Fix.

Attachment 181629 [details] did not pass win-ews (win):
Output: http://queues.webkit.org/results/15738981

[Mark Lam]

Created attachment 181630 [details]
Fix.  Resolves chromium and windows build breakage.

[Mark Lam]

The bots are happy.  Time to get a review.

[Mark Lam]

Comment on attachment 181630 [details]
Fix.  Resolves chromium and windows build breakage.

I meant r? not r+.  Need a review.

[Mark Lam]

Landed in r139078: <http://trac.webkit.org/changeset/139078>.