Rename tools-webrtc -> tools_webrtc

This aligns with established naming convention for all
other directories.

BUG=webrtc:7593
NOTRY=True
NOTREECHECKS=True
R=ehmaldonado@webrtc.org, mbonadei@webrtc.org
TBR=henrika@webrtc.org

Review-Url: https://codereview.webrtc.org/2864213004 .
Cr-Commit-Position: refs/heads/master@{#18059}

tools_webrtc/PRESUBMIT.py

@@ -0,0 +1,45 @@
+# Copyright (c) 2012 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.
+
+def _LicenseHeader(input_api):
+  """Returns the license header regexp."""
+  # Accept any year number from 2003 to the current year
+  current_year = int(input_api.time.strftime('%Y'))
+  allowed_years = (str(s) for s in reversed(xrange(2003, current_year + 1)))
+  years_re = '(' + '|'.join(allowed_years) + ')'
+  license_header = (
+      r'.*? Copyright( \(c\))? %(year)s The WebRTC [Pp]roject [Aa]uthors\. '
+        r'All [Rr]ights [Rr]eserved\.\n'
+      r'.*?\n'
+      r'.*? Use of this source code is governed by a BSD-style license\n'
+      r'.*? that can be found in the LICENSE file in the root of the source\n'
+      r'.*? tree\. An additional intellectual property rights grant can be '
+        r'found\n'
+      r'.*? in the file PATENTS\.  All contributing project authors may\n'
+      r'.*? be found in the AUTHORS file in the root of the source tree\.\n'
+  ) % {
+      'year': years_re,
+  }
+  return license_header
+
+def _CommonChecks(input_api, output_api):
+  """Checks common to both upload and commit."""
+  results = []
+  results.extend(input_api.canned_checks.CheckLicense(
+      input_api, output_api, _LicenseHeader(input_api)))
+  return results
+
+def CheckChangeOnUpload(input_api, output_api):
+  results = []
+  results.extend(_CommonChecks(input_api, output_api))
+  return results
+
+def CheckChangeOnCommit(input_api, output_api):
+  results = []
+  results.extend(_CommonChecks(input_api, output_api))
+  return results