https://bugs.webkit.org/show_bug.cgi?id=103763

Reviewed by Tony Chang.

Source/WebCore:

After an aborted "versionchange" transaction, the IDBDatabase would fetch a fresh snapshot
of the metadata from the back end. If the back end had already started a new "versionchange"
transaction the snapshot would be bogus. Instead, save a copy of the IDBDatabase's metadata
and roll back to that, as is done for IDBObjectStore.

Tests: storage/indexeddb/intversion-abort-in-initial-upgradeneeded.html
       storage/indexeddb/mozilla/versionchange-abort.html
       storage/indexeddb/unblocked-version-changes.html

* Modules/indexeddb/IDBDatabase.cpp:
(WebCore::IDBDatabase::IDBDatabase):
(WebCore::IDBDatabase::transactionCreated):
* Modules/indexeddb/IDBDatabase.h:
(WebCore::IDBDatabase::setMetadata): Let IDBOpenDBRequest and IDBTransaction tinker.
* Modules/indexeddb/IDBOpenDBRequest.cpp:
(WebCore::IDBOpenDBRequest::onUpgradeNeeded): Fetch new and compute old metadata.
(WebCore::IDBOpenDBRequest::onSuccess): Fetch new metadata, in case upgrade changed it.
* Modules/indexeddb/IDBTransaction.cpp:
(WebCore::IDBTransaction::create): Stash the old metadata, in case of rollback.
(WebCore::IDBTransaction::IDBTransaction):
(WebCore::IDBTransaction::onAbort): Revert the database as well as the stores.
* Modules/indexeddb/IDBTransaction.h:
(IDBTransaction):

Source/WebKit/chromium:

Pass previously created proxy along in an open onSuccess, rather than a useless wrapper.

* src/WebIDBCallbacksImpl.cpp:
(WebKit::WebIDBCallbacksImpl::WebIDBCallbacksImpl):
(WebKit::WebIDBCallbacksImpl::onSuccess):
(WebKit::WebIDBCallbacksImpl::onUpgradeNeeded):
* src/WebIDBCallbacksImpl.h:
(WebCore):
(WebIDBCallbacksImpl):

LayoutTests:

Update test expectations and tweak a test so it's testing what it claimed.

* storage/indexeddb/intversion-abort-in-initial-upgradeneeded-expected.txt:
* storage/indexeddb/mozilla/resources/versionchange-abort.js:
(postAbort):
* storage/indexeddb/mozilla/versionchange-abort-expected.txt:
* storage/indexeddb/resources/unblocked-version-changes.js:
(onUpgradeNeeded):
* storage/indexeddb/unblocked-version-changes-expected.txt:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@136475 268f45cc-cd09-0410-ab3c-d52691b4dbfc