The goal here is to avoid the dalvik.vm.* property explosion by
having a single property that takes an arbitrary collection of Dalvik
command-line options. This is intended for testing of various
configurations by the Dalvik team, not industrial use.
Options should be separated by spaces, e.g.
adb shell setprop dalvik.vm.extra-opts "-showversion -Xmx4m"
will print the version banner and set the heap max to 4MB, which won't
get you very far.
The extra-opts options will appear last, which allows them to override
values set earlier (like the heap max).
Bug 2838629.
(cherry-pick from dalvik-dev branch)
Change-Id: Ibcbb1b62367cf2152798583e8722ef7e461ad19a
e4d81f25bd