BASELINE: Update Chromium to 51.0.2704.106

Also add a few extra files we might need for future features.

Change-Id: I517c35e43221c610976d347c966d070ad44d4c2b
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

1 files changed, 43 insertions, 0 deletions

diff --git a/chromium/extensions/browser/PRESUBMIT.py b/chromium/extensions/browser/PRESUBMIT.py
new file mode 100644
index 00000000000..15f8d932fc5
--- /dev/null
+++ b/chromium/extensions/browser/PRESUBMIT.py
@@ -0,0 +1,43 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Chromium presubmit script for src/extensions/browser.
+
+See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
+for more details on the presubmit API built into depot_tools.
+"""
+
+import sys
+
+def _CreateHistogramValueChecker(input_api, output_api, path):
+  original_sys_path = sys.path
+
+  try:
+    sys.path.append(input_api.os_path.join(
+        input_api.PresubmitLocalPath(), '..', '..', 'tools',
+        'strict_enum_value_checker'))
+    from strict_enum_value_checker import StrictEnumValueChecker
+  finally:
+    sys.path = original_sys_path
+
+  return StrictEnumValueChecker(input_api, output_api,
+      start_marker='enum HistogramValue {', end_marker='  // Last entry:',
+      path=path)
+
+
+def _RunHistogramValueCheckers(input_api, output_api):
+  results = []
+  histogram_paths = ('extensions/browser/extension_event_histogram_value.h',
+                     'extensions/browser/extension_function_histogram_value.h')
+  for path in histogram_paths:
+    results += _CreateHistogramValueChecker(input_api, output_api, path).Run()
+  return results
+
+
+def CheckChangeOnUpload(input_api, output_api):
+  results = []
+  results += _RunHistogramValueCheckers(input_api, output_api)
+  results += input_api.canned_checks.CheckPatchFormatted(input_api, output_api)
+  return results
+