Extract protobuf database into a new 'leveldb_proto' component

components/components_tests.gyp

Index: components/components_tests.gyp
diff --git a/components/components_tests.gyp b/components/components_tests.gyp
index 5c13b545ffef9c2bacda66109611eb86047f847c..607c4a2cbd37e5b426b6aa88f958b4c1e3a8036f 100644
--- a/components/components_tests.gyp
+++ b/components/components_tests.gyp
@@ -81,7 +81,6 @@
             'dom_distiller/core/distilled_content_store_unittest.cc',
             'dom_distiller/core/distiller_unittest.cc',
             'dom_distiller/core/distiller_url_fetcher_unittest.cc',
-            'dom_distiller/core/dom_distiller_database_unittest.cc',
             'dom_distiller/core/dom_distiller_model_unittest.cc',
             'dom_distiller/core/dom_distiller_service_unittest.cc',
             'dom_distiller/core/dom_distiller_store_unittest.cc',
@@ -107,6 +106,7 @@
             'keyed_service/content/browser_context_dependency_manager_unittest.cc',
             'keyed_service/core/dependency_graph_unittest.cc',
             'language_usage_metrics/language_usage_metrics_unittest.cc',
+            'leveldb_proto/core/proto_database_impl_unittest.cc',
             'metrics/machine_id_provider_win_unittest.cc',
             'metrics/metrics_hashes_unittest.cc',
             'metrics/metrics_log_base_unittest.cc',
@@ -250,7 +250,7 @@
 
             # Dependencies of feedback
             'components.gyp:feedback_component',
-            
+
             # Dependencies of gcm
             'components.gyp:gcm_driver',
             'components.gyp:gcm_driver_test_support',
@@ -267,6 +267,11 @@
             # Dependencies of language_usage_metrics
             'components.gyp:language_usage_metrics',
 
+            # Dependencies of leveldb_proto
+            '../third_party/leveldatabase/leveldatabase.gyp:leveldatabase',
+            'components.gyp:leveldb_proto_core',
+            'components.gyp:leveldb_proto_test_support',
+
             # Dependencies of metrics
             'components.gyp:metrics',
             'components.gyp:metrics_net',
@@ -383,6 +388,7 @@
                 ['include', '^json_schema/'],
                 ['include', '^keyed_service/core/'],
                 ['include', '^language_usage_metrics/'],
+                ['include', '^leveldb_proto/'],
                 ['include', '^metrics/'],
                 ['include', '^network_time/'],
                 ['include', '^password_manager/'],