Add PRESUBMIT check for including non-Blink variant mojoms in Blink.

third_party/WebKit/PRESUBMIT.py

 # Copyright (c) 2013 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.
 
 """Top-level presubmit script for Blink.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into gcl.
 """
 
 import re
 import sys
 
 
 _EXCLUDED_PATHS = ()
 
 
+def _CheckForNonBlinkVariantMojomIncludes(input_api, output_api):
+    pattern = input_api.re.compile(r'#include\s+.+\.mojom(.*)\.h[>"]')
+    errors = []
+    for f in input_api.AffectedFiles():
+        for line_num, line in f.ChangedContents():
+            m = pattern.match(line)
+            if m and m.group(1) != '-blink':
+                errors.append('    %s:%d %s' % (
+                    f.LocalPath(), line_num, line))
+
+    results = []
+    if errors:
+        results.append(output_api.PresubmitError(
+            'Files that include non-Blink variant mojoms found:', errors))
+    return results
+
+
 def _CheckForVersionControlConflictsInFile(input_api, f):
     pattern = input_api.re.compile('^(?:<<<<<<<|>>>>>>>) |^=======$')
     errors = []
     for line_num, line in f.ChangedContents():
         if pattern.match(line):
             errors.append('    %s:%d %s' % (f.LocalPath(), line_num, line))
     return errors
 
 
 def _CheckForVersionControlConflicts(input_api, output_api):
@@ skipping 41 matching lines @@
 
 def _CommonChecks(input_api, output_api):
     """Checks common to both upload and commit."""
     # We should figure out what license checks we actually want to use.
     license_header = r'.*'
 
     results = []
     results.extend(input_api.canned_checks.PanProjectChecks(
         input_api, output_api, excluded_paths=_EXCLUDED_PATHS,
         maxlen=800, license_header=license_header))
+    results.extend(_CheckForNonBlinkVariantMojomIncludes(input_api, output_api))
     results.extend(_CheckForVersionControlConflicts(input_api, output_api))
     results.extend(_CheckPatchFiles(input_api, output_api))
     results.extend(_CheckTestExpectations(input_api, output_api))
     results.extend(_CheckChromiumPlatformMacros(input_api, output_api))
     results.extend(_CheckWatchlist(input_api, output_api))
     results.extend(_CheckFilePermissions(input_api, output_api))
     return results
 
 
 def _CheckPatchFiles(input_api, output_api):
@@ skipping 193 matching lines @@
     for master in masters:
         try_config.setdefault(master, {})
         for builder in masters[master]:
             # Do not trigger presubmit builders, since they're likely to fail
             # (e.g. OWNERS checks before finished code review), and we're
             # running local presubmit anyway.
             if 'presubmit' not in builder:
                 try_config[master][builder] = ['defaulttests']
 
     return try_config