Change default download directory for Android Q

In Q, it is suggested that we use Context methods for accessing external
This change fixes a bug on Android Q where we don't have permission to store
downloaded pages.

Bug: 956679
Change-Id: If53b16c15204cdc396cf4ab1d84419b32c7384f1
Commit-Queue: Dan H <>
Reviewed-by: Min Qin <>
Reviewed-by: Carlos Knippschild <>
Reviewed-by: Andrew Grieve <>
Cr-Commit-Position: refs/heads/master@{#663118}
2 files changed