Pull in libFuzzer as a third party dep.

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 83 matching lines @@
   'deqp_revision': 'cc0ded6c77267bbb14d21aac358fc5d9690c07f8',
   'deqp_url': 'https://android.googlesource.com/platform/external/deqp',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling freetype-android
   # and whatever else without interference from each other.
   'freetype_android_revision': 'a512b0fe7a8d9db0e5aa9c0a4db1e92cb861722d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling catapult
   # and whatever else without interference from each other.
   'catapult_revision': '87ef16864757739c019c49c2cc1a0a27e28fdc31',
+  # Three lines of non-changing comments so that
+  # the commit queue can handle CLs rolling libFuzzer
+  # and whatever else without interference from each other.
+  'libfuzzer_revision': '1d3e15006639ad8c1aadd2d7bac4dab9a6be7da6', # from svn revision 265174
 }
 
 # Only these hosts are allowed for dependencies in this DEPS file.
 # If you need to add a new host, contact chrome infrastracture team.
 allowed_hosts = [
   'chromium.googlesource.com',
   'boringssl.googlesource.com',
   'pdfium.googlesource.com',
   'android.googlesource.com',
 ]
@@ skipping 309 matching lines @@
     'src/third_party/wayland/src':
      Var('chromium_git') + '/external/anongit.freedesktop.org/git/wayland/wayland.git' + '@' + '7ed00c1de77afbab23f4908fbd9d60ec070c209b',
 
     # Wayland protocols that add functionality not available in the core protocol.
     'src/third_party/wayland-protocols/src':
      Var('chromium_git') + '/external/anongit.freedesktop.org/git/wayland/wayland-protocols.git' + '@' + '596dfda882a51c05699bcb28a8459ce936a138db',
 
     # Wireless Display Software. Used on Chrome OS.
     'src/third_party/wds/src':
      Var('chromium_git') + '/external/github.com/01org/wds' + '@' + 'f187dda5fccaad08e168dc6657109325f42c648e',
+
+    # Used for building libFuzzers (only supports Linux).
+    'src/third_party/libFuzzer/src':
+     Var('chromium_git') + '/chromium/llvm-project/llvm/lib/Fuzzer.git' + '@' +  Var('libfuzzer_revision'),
   },
   'android': {
     'src/third_party/android_protobuf/src':
      Var('chromium_git') + '/external/android_protobuf.git' + '@' + '999188d0dc72e97f7fe08bb756958a2cf090f4e7',
 
     'src/third_party/android_tools':
      Var('chromium_git') + '/android_tools.git' + '@' + 'adfd31794011488cd0fc716b53558b2d8a67af8b',
 
     'src/third_party/apache-mime4j':
      Var('chromium_git') + '/chromium/deps/apache-mime4j.git' + '@' + '28cb1108bff4b6cf0a2e86ff58b3d025934ebe3a',
@@ skipping 402 matching lines @@
     'pattern': '\\.sha1',
     'action': ['python', 'src/third_party/instrumented_libraries/scripts/download_binaries.py'],
   },
   {
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     'name': 'gyp',
     'pattern': '.',
     'action': ['python', 'src/build/gyp_chromium'],
   },
 ]