LevelDB storage for data reduction proxy to store data usage stats.

components/data_reduction_proxy.gypi

Index: components/data_reduction_proxy.gypi
diff --git a/components/data_reduction_proxy.gypi b/components/data_reduction_proxy.gypi
index 4742760eedd62bb411130bbc2708c7d1000775e3..83afaae602493a863b92ad084fa824797ab7808c 100644
--- a/components/data_reduction_proxy.gypi
+++ b/components/data_reduction_proxy.gypi
@@ -48,6 +48,12 @@
         'data_reduction_proxy/core/browser/data_reduction_proxy_settings.h',
         'data_reduction_proxy/core/browser/data_reduction_proxy_tamper_detection.cc',
         'data_reduction_proxy/core/browser/data_reduction_proxy_tamper_detection.h',
+        'data_reduction_proxy/core/browser/data_store.cc',
+        'data_reduction_proxy/core/browser/data_store.h',
+        'data_reduction_proxy/core/browser/data_usage_store.cc',
+        'data_reduction_proxy/core/browser/data_usage_store.h',
+        'data_reduction_proxy/core/browser/db_data_owner.cc',
+        'data_reduction_proxy/core/browser/db_data_owner.h',
      ],
      'data_reduction_proxy_core_browser_deps' : [
         'data_reduction_proxy_version_header',
@@ -195,12 +201,15 @@
         '../url/url.gyp:url_lib',
         'data_reduction_proxy_core_common',
         'data_reduction_proxy_proto',
+        '../third_party/leveldatabase/leveldatabase.gyp:leveldatabase',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
-        '<@(data_reduction_proxy_core_browser_sources)'
+        '<@(data_reduction_proxy_core_browser_sources)',
+        'data_reduction_proxy/core/browser/data_store_impl.cc',
+        'data_reduction_proxy/core/browser/data_store_impl.h',
       ],
     },
     {
@@ -267,6 +276,7 @@
       'sources': [
         # Note: sources list duplicated in GN build.
         'data_reduction_proxy/proto/client_config.proto',
+        'data_reduction_proxy/proto/data_store.proto',
       ],
       'variables': {
         'proto_in_dir': 'data_reduction_proxy/proto',