tree ee428a17f93922e6f78e3482c348e6e7b81a8e4f
parent f55996d6b4a672e09fbe3a3563646a7682719b4a
author Mathieu Chartier <mathieuc@google.com> 1415043707 -0800
committer Mathieu Chartier <mathieuc@google.com> 1415320020 -0800

Add hash set

More memory efficient than libcxx since we do not box the values.

Change intern table to use new hash set. Clean up intern table by
removing const casts and deleting unnecessary code.

Changed the class linker to use a hash set, also added a pre-zygote
class table.

5 samples of:
adb shell stop && adb shell start && sleep 60 && adb shell dumpsys meminfo
Before:
165929 kB: Native
175859 kB: Native
168434 kB: Native
166559 kB: Native
169958 kB: Native

After:
160972 kB: Native
159439 kB: Native
157204 kB: Native
165093 kB: Native
163039 kB: Native

TODO: Add HashTable which is implemented by using a HashSet.
TODO: Use for DexFile::find_class_def_misses_.
TODO: Investigate using mem maps instead of native heap.

Bug: 17808975

Change-Id: I93e376cf6eb9628cf52f4aefdadb6157acfb799a

(cherry picked from commit e05d1d5fd86867afc7513b1c546375dba11eee50)