DEPS hook for installing the clang-format merge driver.

DEPS

 # This file is used to manage the dependencies of the Chromium src repo. It is
 # used by gclient to determine what version of each dependency to check out, and
 # where.
 #
 # For more information, please refer to the official documentation:
 #   https://sites.google.com/a/chromium.org/dev/developers/how-tos/get-the-code
 #
 # When adding a new dependency, please update the top-level .gitignore file
 # to list the dependency's destination directory.
 #
@@ skipping 987 matching lines @@
     "name": "wasm_asmjs_fuzzer",
     "pattern": ".",
     "action": [ "download_from_google_storage",
                 "--no_resume",
                 "--no_auth",
                 "-u",
                 "--bucket", "v8-wasm-asmjs-fuzzer",
                 "-s", "src/v8/test/fuzzer/wasm_asmjs.tar.gz.sha1",
     ],
   },
+  {
+    'name': 'clang_format_merge_driver',
+    'pattern': '.',
+    'action': [ 'python',
+                'src/tools/clang_format_merge_driver/install_git_hook.py',
+    ],
+  },
 ]
 
 recursedeps = [
   # android_tools manages the NDK.
   'src/third_party/android_tools',
   # ANGLE manages DEPS that it also owns the build files for, such as dEQP.
   ("src/third_party/angle", "DEPS.chromium"),
 ]