Files: Extract VolumeInfo interface from volume_manager.js.
Extracted VolumeInfo interface so that our modules which depend on only the VolumeInfo's interface
don't need to have dependencies on the VolumeInfo's implementation.
BUG=
636289
TEST=third_party/closure_compiler/run_compiler
Committed:
https://crrev.com/d54cfea10b58af54234c0c29ce2df19ea2e860d0
Cr-Commit-Position: refs/heads/master@{#413423}