Moving get_landmines.py (build/ -> tools-webrtc/)

BUG=webrtc:7030
NOTRY=True

Review-Url: https://codereview.webrtc.org/2656553002
Cr-Commit-Position: refs/heads/master@{#16227}
diff --git a/tools-webrtc/get_landmines.py b/tools-webrtc/get_landmines.py
new file mode 100755
index 0000000..beefeff
--- /dev/null
+++ b/tools-webrtc/get_landmines.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python
+# Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS.  All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+
+"""
+This file emits the list of reasons why a particular build needs to be clobbered
+(or a list of 'landmines').
+"""
+
+import os
+import sys
+
+script_dir = os.path.dirname(os.path.realpath(__file__))
+checkout_root = os.path.abspath(os.path.join(script_dir, os.pardir))
+sys.path.insert(0, os.path.join(checkout_root, 'build'))
+import landmine_utils
+
+
+distributor = landmine_utils.distributor
+gyp_defines = landmine_utils.gyp_defines
+gyp_msvs_version = landmine_utils.gyp_msvs_version
+platform = landmine_utils.platform
+
+
+def print_landmines():
+  """
+  ALL LANDMINES ARE EMITTED FROM HERE.
+  """
+  # DO NOT add landmines as part of a regular CL. Landmines are a last-effort
+  # bandaid fix if a CL that got landed has a build dependency bug and all bots
+  # need to be cleaned up. If you're writing a new CL that causes build
+  # dependency problems, fix the dependency problems instead of adding a
+  # landmine.
+  # See the Chromium version in src/build/get_landmines.py for usage examples.
+  print 'Clobber to remove out/{Debug,Release}/args.gn (webrtc:5070)'
+  if platform() == 'android':
+    print ('Clobber to remove artifacts on Android causing lint errors after '
+           'rolling in https://codereview.webrtc.org/2293863002')
+    print ('Clobber to remove old AppRTCDemo artifacts after renaming to '
+           'AppRTCMobile in https://codereview.webrtc.org/2373443005')
+    print ('Clobber to fix Android x86/x64 builds after '
+           'https://codereview.webrtc.org/1414343008/')
+  if platform() == 'win':
+    print 'Clobber to resolve some issues with corrupt .pdb files on bots.'
+    print 'Clobber due to corrupt .pdb files (after #14623)'
+    print 'Clobber due to Win 64-bit Debug linking error (crbug.com/668961)'
+
+
+def main():
+  print_landmines()
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main())