[SysApps][Android] Refine display attributes based on latest spec

SPEC=http://www.w3.org/2012/sysapps/device-capabilities/
BUG=XWALK-1309
[Extensions] Add command line switch xwalk-extension-cmd-prefix

This will prepend the contents of this flag to the command line
when starting extension process, it works as same as the switch
"--renderer-cmd-prefix", could be useful if we need to debug
the extension process at its very beginning.
Useful values might be "valgrind" or "xterm -e gdb --args".

Also modified the child path flag which is used to retrieve the
child process' execution file according to the extension command
line prefix on linux. In most cases we need to use CHILD_ALLOW_SELF
to exec child process from /proc/self/exe to prevent chromium's
autoupdate feature to change the file out from underneath; For the
case of xwalk-extension-cmd-prefix, as we suppose to override the
command line to load the app directly, we need to use CHILD_NORMAL
to exec child process from its real app path.
Bump version to 6.34.116.0
Merge pull request #1780 from jondong/master

[Extensions] Add command line switch xwalk-extension-cmd-prefix
Merge pull request #1773 from halton/display_refine

[SysApps][Android] Refine display attributes based on latest spec
[Application][Extension][Runtime] Merge xwalk-launcher with extension process in service mode

With this update when running in service mode, XWalkExtensionProcess will be
bootstrapped by launcher instead of runtime daemon.

This improvement has several advantages:
1. Some Tizen Device APIs binding with AUL can be directly called in launcher,
instead of passing request through IPC.
2. Less process number for an application, the system footprint will be smaller.

Implementation details:
Once a XWalkExtensionProcessHost is created, it will notify corresponding running
application's DBus object to send a signal to its launcher. Then launcher will
retrieve the created IPC channel and instantiate a XWalkExtensionProcess.
Merge pull request #1725 from seanlong/ep2launcher

[Application][Runtime][Extension] Merge xwalk-launcher with extension process for service mode
[Tizen] packaging: Remove dead %patch calls.

We don't care about Tizen 2 anymore, and the referenced files do not even
exist anymore.
Merge pull request #1802 from rakuco/remove-tizen2-remains

[Tizen] packaging: Remove dead %patch calls.
DEPS.xwalk: Move to Chromium 35.0.1908.4.
M35 gardening.

CL: https://codereview.chromium.org/183853011
M35 gardening.

CL: https://codereview.chromium.org/165893002
M35 gardening.

CL: https://codereview.chromium.org/198333004
M35 gardening.

CL: https://codereview.chromium.org/186883002
M35 gardening.

CL: https://codereview.chromium.org/172163003
M35 gardening.

CL: https://codereview.chromium.org/120303003
M35 gardening.

CL: https://codereview.chromium.org/126763003
M35 gardening.

CL: https://codereview.chromium.org/196413016
M35 gardening.

CL: https://codereview.chromium.org/199063003
[Tizen] Remove Mesa patch that's not needed anymore.

This was fixed differently upstream with r255915 in Chromium.