Update src/third_party/nss to r48440, which contains two changes:...

DEPS

 vars = {
   "webkit_trunk":
   "http://svn.webkit.org/repository/webkit/trunk",
   "webkit_revision": "60276",
   "ffmpeg_revision": "47712",
   "skia_revision": "562",
   "chromium_git": "http://src.chromium.org/git",
   "swig_revision": "40423",
   "nacl_revision": "2235",
   "libvpx_revision": "47701",
@@ skipping 166 matching lines @@
       "/trunk/deps/third_party/xulrunner-sdk@17887",
     "src/chrome_frame/tools/test/reference_build/chrome":
       "/trunk/deps/reference_builds/chrome_frame@33840",
 
     # Parses Windows PE/COFF executable format.
     "src/third_party/pefile":
       "http://pefile.googlecode.com/svn/trunk@63",
 
     # NSS, for SSLClientSocketNSS.
     "src/third_party/nss":
-      "/trunk/deps/third_party/nss@45059",
+      "/trunk/deps/third_party/nss@48440",
 
     "src/third_party/swig/win":
       "/trunk/deps/third_party/swig/win@" + Var("swig_revision"),
 
     "src/third_party/mingw-w64/mingw/bin":
       ("http://nativeclient.googlecode.com/svn/trunk/src/third_party/mingw-w64/mingw/bin@" +
        Var("nacl_revision")),
   },
   "mac": {
     "src/chrome/tools/test/reference_build/chrome_mac":
@@ skipping 10 matching lines @@
       Var("webkit_trunk") + "/WebKit/mac@" + Var("webkit_revision"),
     "src/third_party/WebKit/WebKitLibraries":
       Var("webkit_trunk") + "/WebKitLibraries@" + Var("webkit_revision"),
 
     # TODO(ajwong): Move this into the OS-independent block.
     "src/third_party/yasm/source/patched-yasm":
       "/trunk/deps/third_party/yasm/patched-yasm@29937",
 
     "src/third_party/swig/mac":
       "/trunk/deps/third_party/swig/mac@" + Var("swig_revision"),
+
+    # NSS, for SSLClientSocketNSS.
+    "src/third_party/nss":
+      "/trunk/deps/third_party/nss@48440",
   },
   "unix": {
     # Linux, really.
     "src/chrome/tools/test/reference_build/chrome_linux":
       "/trunk/deps/reference_builds/chrome_linux@41515",
 
     "src/third_party/xdg-utils":
       "/trunk/deps/third_party/xdg-utils@29103",
 
     # TODO(ajwong): Move this into the OS-independent block.
@@ skipping 41 matching lines @@
     "action": ["python", "src/build/gyp_chromium"],
   },
   {
     # Workaround XCode dependecies problem.
     # TODO(bradnelson): remove this when fixed.
     "pattern": ".",
     "action": ["python",
                "src/build/mac/clobber_generated_headers.py"],
   },
 ]