With this change ApplicationLoaders.getClassLoader()
creates linker-namespace for the classloader at the
construction time. Before this change the namespace
was created on first load of a jni library.
With this change we ensure that every classloader
has initialized namespace associated with it.
As an additional advantage we now can avoid storing
namespace-specific fields in the classloaders.
Bug: http://b/27189432
Bug: http://b/22548808
Change-Id: I3b160bd478a55171008682c40b2ebc13bdbd9882
(cherry picked from commit a55c7f15a3)
ea90281082