Add support in the package installer to install dex metadata files
alongside the application apks (base or splits).
During installation or update the dex metadata files will need to have a
matching apk file. The matching is done by checking the file extension
(e.g. base.apk -> base.dm, split_a.apk -> split.dm).
On disk, the metadata files are placed next to the apks.
The .dm files will be used during install-time optimizations and passed
verbatim to dex2oat.
Test: adb shell am instrument -w \
1) adb shell am instrument -w \
-e class android.content.pm.DexMetadataHelperTest
com.android.frameworks.coretests/android.support.test.runner.AndroidJUnitRunner
2) adb install-multiple CtsClassloaderSplitApp.apk
CtsClassloaderSplitApp.dm CtsClassloaderSplitAppFeatureA.apk
CtsClassloaderSplitAppFeatureA.dm CtsClassloaderSplitAppFeatureB.apk
3) gts-tradefed -m GtsAndroidRuntimeManagerHostTestCases
(cherry picked from commit 3fc56c3000)
Bug: 30934496
Merged-In: I86f0a8307705ff3d6a5a85c2fcaae085dd62d4af
Change-Id: I86f0a8307705ff3d6a5a85c2fcaae085dd62d4af
011603ab76