tree 23d364f99ae51ea31a9d4e9e9c5bcf7048db7184
parent e89cf793ab22fcb8cea3ff94ca981659208446db
author Winson Chung <winsonc@google.com> 1433463497 -0700
committer Winson Chung <winsonc@google.com> 1434403367 -0700

Refactoring all apps search to support external search bar.

- Adding support for an external search bar that can be used
  to search a container view.  This adds a new interface
  AllAppsSearchController which manages the external search
  bar.  Each controller will have its own search implementation
  which means that we no longer need a common AppSearchManager
  interface.
- Removing elevation controller as we no longer have a builtin
  search bar in all apps
- Refactoring container view insets so that they behave
  the same in all containers.
- Refactoring apps view to ensure that we only update the number
  of columns with the available width
- Cleaning up LauncherCallbacks interface

Bug: 20127840
Bug: 21494973

Change-Id: I710b8e18196961d77d8a29f0c345531d480936fe