mojo: Get mojo:leveldb and mojo:filesystem compiled into content.

components/leveldb/leveldb.gyp

+# Copyright 2016 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.
+
+{
+  'variables': {
+    # This turns on e.g. the filename-based detection of which
+    # platforms to include source files on (e.g. files ending in
+    # _mac.h or _mac.cc are only compiled on MacOSX).
+    'chromium_code': 1,
+  },
+  'targets': [
+    {
+      # GN version: //components/leveldb:lib
+      'target_name': 'leveldb_lib',
+      'type': 'static_library',
+      'include_dirs': [
+        '../..',
+      ],
+      'sources': [
+        'env_mojo.cc',
+        'env_mojo.h',
+        'leveldb_database_impl.cc',
+        'leveldb_database_impl.h',
+        'leveldb_file_thread.cc',
+        'leveldb_file_thread.h',
+        'leveldb_service_impl.cc',
+        'leveldb_service_impl.h',
+        'util.cc',
+        'util.h',
+      ],
+      'dependencies': [
+        'leveldb_bindings_mojom',
+        '../../components/filesystem/filesystem.gyp:filesystem_lib',
+        '../../mojo/mojo_base.gyp:mojo_application_base',
+        '../../mojo/mojo_public.gyp:mojo_cpp_bindings',
+        '../../third_party/leveldatabase/leveldatabase.gyp:leveldatabase',
+      ]
+    },
+    {
+      # GN version: //components/leveldb/public/interfaces
+      'target_name': 'leveldb_bindings',
+      'type': 'static_library',
+      'dependencies': [
+        'leveldb_bindings_mojom',
+      ],
+    },
+    {
+      'target_name': 'leveldb_bindings_mojom',
+      'type': 'none',
+      'variables': {
+        'mojom_files': [
+          'public/interfaces/leveldb.mojom',
+        ],
+      },
+      'dependencies': [
+        '../../components/filesystem/filesystem.gyp:filesystem_bindings_mojom',
+      ],
+      'includes': [
+        '../../mojo/mojom_bindings_generator_explicit.gypi',
+      ],
+    }
+  ],
+}