Allow Crashpad to build in the Chromium tree

third_party/mini_chromium/mini_chromium.gyp

+# Copyright 2015 The Crashpad Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+{
+  'includes': [
+    '../../build/crashpad_in_chromium.gypi',
+  ],
+  'targets': [
+    {
+      # To support both Crashpad’s standalone build and its in-Chromium build,
+      # Crashpad code depending on base should do so through this shim, which
+      # will either get base from mini_chromium or Chromium depending on the
+      # build type.
+      'target_name': 'base',
+      'type': 'none',
+      'conditions': [
+        ['crashpad_in_chromium==0', {
+          'dependencies': [
+            'mini_chromium/base/base.gyp:base',
+          ],
+          'export_dependent_settings': [
+            'mini_chromium/base/base.gyp:base',
+          ],
+        }, {  # else: crashpad_in_chromium!=0
+          'dependencies': [
+            '../../../../../base/base.gyp:base',
+          ],
+          'export_dependent_settings': [
+            '../../../../../base/base.gyp:base',
+          ],
+        }],
+      ],
+    },
+  ],
+}