tree 35e614276fa9efcbe3ff8583cb5ba395d1d8d116
parent 7877b8add811aafd7f57f731c8e22c9fe6a319c8
author Fyodor Kupolov <fkupolov@google.com> 1467323302 -0700
committer Fyodor Kupolov <fkupolov@google.com> 1467323388 -0700

Performance optimizations in generatePackageInfo

In PM.generatePackageInfo, granted permissions (returned by permissionsState.
getPermissions) are only used if the package has a non-empty list of
requested permissions. Added a shortcut to handle that. In my tests
this shortcut is triggered in ~20% calls to PM.generatePackageInfo.

Also added an early continue in PermissionsState.getPermissions. Calling
hasRuntimePermission was not necessary in 90% cases.
Also changed ArraySet to be created with capacity for all mPermissions --
this is the typical scenario, previously it was going through multiple
grow operations.

Bug: 29879962
Change-Id: Ic4d8914d1c4f4df447deee2e3e3a15a2594e90ef