Move dynamic_annotations into a separate gyp file to break

base/third_party/dynamic_annotations/dynamic_annotations.gyp

+# Copyright (c) 2010 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.
+
+{
+  'targets': [
+    {
+      'target_name': 'dynamic_annotations',
+      'type': '<(library)',
+      'msvs_guid': 'EF3AD1A1-5FA6-4B70-9CCC-F5AE4C6D0892',
+      'include_dirs': [
+        '<(DEPTH)',
+      ],
+      'sources': [
+        'dynamic_annotations.c',
+        'dynamic_annotations.h',
+      ],
+    },
+  ],
+  'conditions': [
+    ['OS == "win"', {
+      'targets': [
+        {
+          'target_name': 'dynamic_annotations_win64',
+          'type': '<(library)',
+          'msvs_guid': 'E8055455-0065-427B-9461-34A16FAD1973',
+          # We can't use dynamic_annotations target for win64 build since it is
+          # a 32-bit library.
+          # TODO(gregoryd): merge with dynamic_annotations when
+          # the win32/64 targets are merged.
+          'include_dirs': [
+              '<(DEPTH)',
+          ],
+          'sources': [
+            'dynamic_annotations.c',
+            'dynamic_annotations.h',
+          ],
+          'configurations': {
+            'Common_Base': {
+              'msvs_target_platform': 'x64',
+            },
+          },
+        },
+      ],
+    }],
+  ],
+}