Add jsoncpp in DEPS and the gyp file to build jsoncpp in chromium.

DEPS

Index: DEPS
===================================================================
--- DEPS	(revision 106080)
+++ DEPS	(working copy)
@@ -2,6 +2,7 @@
   # Use this googlecode_url variable only if there is an internal mirror for it.
   # If you do not know, use the full path while defining your new deps entry.
   "googlecode_url": "http://%s.googlecode.com/svn",
+  "sourceforge_url": "https://%s.svn.sourceforge.net/svnroot",

[nsylvain, 2011/10/18 22:41:46]

can you change this to :
https://%(repo)s.svn.sourceforge.net/svnroot

And does it need to be https? can this be http for now, to be consistent with
the rest? (some machines have a hard time fetching from https)

[Ronghua, 2011/10/18 23:31:31]

Done.

   "webkit_trunk": "http://svn.webkit.org/repository/webkit/trunk",
   "nacl_trunk": "http://src.chromium.org/native_client/trunk",
   "webkit_revision": "97725",
@@ -274,6 +275,9 @@
   "src/third_party/webrtc":
     (Var("googlecode_url") % "webrtc") + "/trunk/src@" + Var("webrtc_revision"),
 
+  "src/third_party/jsoncpp":
+    (Var("sourceforge_url") % "jsoncpp") + "/jsoncpp/trunk/jsoncpp@246",

[nsylvain, 2011/10/18 22:41:46]

and here:
% {"repo": "jsoncpp"}

[Ronghua, 2011/10/18 23:31:31]

Done.

+
   "src/third_party/mozc/session":
     (Var("googlecode_url") % "mozc") + "/trunk/src/session@58",