Add chromite and pyelftools to DEPS file.

DEPS

 # When adding a new dependency, please update the top-level .gitignore file
 # to list the dependency's destination directory.
 
 vars = {
   # 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": "http://%(repo)s.svn.sourceforge.net/svnroot/%(repo)s",
   "webkit_trunk": "http://svn.webkit.org/repository/webkit/trunk",
   "nacl_trunk": "http://src.chromium.org/native_client/trunk",
@@ skipping 542 matching lines @@
 
     # For Linux and Chromium OS.
     "src/third_party/cros_system_api":
       Var("chromiumos_git") + "/platform/system_api.git" +
       "@332a38018217d39bb5325d535913796200ff6780",
 
     # Note that this is different from Android's freetype repo.
     "src/third_party/freetype2/src":
       Var("chromium_git") + "/chromium/src/third_party/freetype2.git" +
       "@d699c2994ecc178c4ed05ac2086061b2034c2178",
+
+    # Build tools for targeting ChromeOS.
+    "src/third_party/chromite":
+      Var("chromiumos_git") + "/chromite.git" +
+      "@7cb5f04c5947792307c55487878f2a12bc7bfc76",
+
+    # Dependency of chromite.git.
+    "src/third_party/pyelftools":
+      Var("chromiumos_git") + "/third_party/pyelftools.git" +
+      "@bdc1d380acd88d4bfaf47265008091483b0d614e",
   },
   "android": {
     "src/third_party/android_tools":
       Var("chromium_git") + "/android_tools.git" +
       "@02d3db3c400baa959883006dc697c6cbd70c5194",
 
     "src/third_party/aosp":
       "/trunk/deps/third_party/aosp@148330",
 
     "src/third_party/apache-mime4j":
@@ skipping 113 matching lines @@
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     "pattern": ".",
     "action": ["python", "src/build/gyp_chromium"],
   },
   {
     # Check for landmines (reasons to clobber the build).
     "pattern": ".",
     "action": ["python", "src/build/landmines.py"],
   },
 ]