Use new mechanism to retrieve battery stats, now that they
can be much larger.
Make sure these will ever end up going through an IPC.
Change-Id: Ic582a61d736e24bddc905082c1565ece00fcbb29
Most of this is done, the main thing missing is the color
of the bars which seems like a framework issue.
Note that this introduces a change to the global theme
making colorControlActivated the specified blue color,
which impacts all of the settings UI. (Except apparently
progress bars, and thus the bug.)
Change-Id: I4a5ca8c3b94dc23b8f065f60fe697ee0e76ff47d
Adds a full-screen version of the battery history visualization,
which you can get to by tapping on the battery history chart in
the summary screen.
Change-Id: Ibca5ef3d0883ff6ffa80b6ddca3c8ac838c85842
