Instead of importing every single type individually ("using <type>"),
import entire namespaces of
::android::hardware::audio::CPP_VERSION and
::android::hardware::audio::common::CPP_VERSION
inside the "implementation" namespace in the default implementation.
This simplifies modifying types, as it is not needed anymore
to surround "using <type>" directives with #if MAJOR_VERSION ...
Note that the contents of the namespaces are imported inside
the "implementation" namespace, which reduces risks of name collision
Also, fixed the namespace for HidlUtils--it needs to be in
'implementation'.
Test: make
Change-Id: I81bbb3074b5763717ae72e747a075fd46dc36d18
543bf9cb16