Componentize //chrome/browser/prefs/tracked.

components/user_prefs.gypi

Index: components/user_prefs.gypi
diff --git a/components/user_prefs.gypi b/components/user_prefs.gypi
index 3554d0d9ae925ae079508fe9dbea4d61d0bf6a96..7f2d3ad64735f5b659de318603b4791384519cf6 100644
--- a/components/user_prefs.gypi
+++ b/components/user_prefs.gypi
@@ -23,5 +23,71 @@
         'user_prefs/user_prefs_export.h',
       ],
     },
+    {
+      'target_name': 'user_prefs_tracked',
+      'type': 'static_library',
+      'include_dirs': [
+        '..',
+      ],
+      'dependencies': [
+      ],
+      'sources': [
+        'user_prefs/tracked/device_id.h',
+        'user_prefs/tracked/device_id_stub.cc',
+        'user_prefs/tracked/device_id_win.cc',
+        'user_prefs/tracked/dictionary_hash_store_contents.cc',
+        'user_prefs/tracked/dictionary_hash_store_contents.h',
+        'user_prefs/tracked/hash_store_contents.h',
+        'user_prefs/tracked/interceptable_pref_filter.cc',
+        'user_prefs/tracked/interceptable_pref_filter.h',
+        'user_prefs/tracked/pref_hash_calculator.cc',
+        'user_prefs/tracked/pref_hash_calculator.h',
+        'user_prefs/tracked/pref_hash_filter.cc',
+        'user_prefs/tracked/pref_hash_filter.h',
+        'user_prefs/tracked/pref_hash_store.h',
+        'user_prefs/tracked/pref_hash_store_impl.cc',
+        'user_prefs/tracked/pref_hash_store_impl.h',
+        'user_prefs/tracked/pref_hash_store_transaction.h',
+        'user_prefs/tracked/pref_names.cc',
+        'user_prefs/tracked/pref_names.h',
+        'user_prefs/tracked/pref_service_hash_store_contents.cc',
+        'user_prefs/tracked/pref_service_hash_store_contents.h',
+        'user_prefs/tracked/segregated_pref_store.cc',
+        'user_prefs/tracked/segregated_pref_store.h',
+        'user_prefs/tracked/tracked_atomic_preference.cc',
+        'user_prefs/tracked/tracked_atomic_preference.h',
+        'user_prefs/tracked/tracked_preference.h',
+        'user_prefs/tracked/tracked_preference_helper.cc',
+        'user_prefs/tracked/tracked_preference_helper.h',
+        'user_prefs/tracked/tracked_preference_validation_delegate.h',
+        'user_prefs/tracked/tracked_preferences_migration.cc',
+        'user_prefs/tracked/tracked_preferences_migration.h',
+        'user_prefs/tracked/tracked_split_preference.cc',
+        'user_prefs/tracked/tracked_split_preference.h',
+      ],
+      'conditions': [
+        ['OS=="win"', {
+          'sources!': [
+            'user_prefs/tracked/device_id_stub.cc',
+          ],
+        }],
+      ],
+
+      # Disable the warning(4267) treated as error

[blundell, 2015/08/07 11:39:36]

Here and in the gn file, add the same comment as in other places:

"# TODO(jschuh): crbug.com/167187 fix size_t to int truncations."

+      'msvs_disabled_warnings': [4267, ],
+    },
+    {
+      'target_name': 'user_prefs_tracked_test_support',
+      'type': 'static_library',
+      'include_dirs': [
+        '..',
+      ],
+      'dependencies': [
+      ],
+      'sources': [
+        'user_prefs/tracked/mock_validation_delegate.cc',
+        'user_prefs/tracked/mock_validation_delegate.h',
+      ],
+    },
   ],
 }