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John Delaney authored
What: Defer creation/opening of the sql database until there is a storage operation which needs it. Why: We unconditionally create the database for every storage partition whether the API is being used which is unnecessary. This has the added benefit of not forcing the database to be initialized in every browsertest once the feature is enabled by default. How: Use the presence of the database file as a signal for creation. If the file path doesn't exist, we can defer creation until an impression is stored. No other operations need to create the database as it is empty and would be a no-op regardless. If the database path does exist, we defer opening the database until any operation is called, as there may be conversions that need to be sent or impression to convert etc. Change-Id: I25446805a991f04fcbf9aa237195950d055558aa Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2360471 Commit-Queue: John Delaney <johnidel@chromium.org> Reviewed-by:
Charlie Harrison <csharrison@chromium.org> Cr-Commit-Position: refs/heads/master@{#799370}
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