webkit: Manage video playing state properly when browser goes to background

Issue: Browser App Video streaming not pausing while pressing home Button

Fix : When the Browser goes to the background while the video is playing
      in the fullscreen, the fullscreen mode is exited. While exiting
      the full screen mode the video state is handled properly. So that
      there is no playback in the background.

CRs-Fixed: 509225

Change-Id: I32c306923d2638731d34d216cf006050ce4ad825
platform: Remove mapping of android.permission.CAMERA to camera group

This mapping introduces security risk where any app with android.
permission.CAMERA can open camera driver directly without going
through mediaserver.

CRs-Fixed: 448868
Change-Id: Ic16880cfac0bc85a3e753ccd3261bfc455b02d1a
Correct executable bit for source files

Many media files and source code files were marked as executable in Git.
Remove those.

Also a shell script and python script were not marked as executable.

Change-Id: Ieb51bafb46c895a21d2e83696f5a901ba752b2c5
Signed-off-by: Chirayu Desai <cdesai@cyanogenmod.org>
Squash navigation bar cm commits

- Fix google now animation
- Fix derp
- Hide navigation ring if no targets are configured.