Made blink gyps and gns to public oilpan configuration

Source/build/features.gypi

Index: Source/build/features.gypi
diff --git a/Source/build/features.gypi b/Source/build/features.gypi
index 0e08f173f28c2173e54f52bc3258c343255157c7..62fbbc7955caa0566f9745c6773fc55a33bbb33d 100644
--- a/Source/build/features.gypi
+++ b/Source/build/features.gypi
@@ -37,6 +37,9 @@
       # We can't define it here because it should be present only
       # in Debug or release_valgrind_build=1 builds.
     ],
+    'public_feature_defines': [
+    ],
+
     # We have to nest variables inside variables so that they can be overridden
     # through GYP_DEFINES.
     'variables': {
@@ -77,7 +80,7 @@
         ],
       }],
       ['enable_oilpan==1', {
-        'feature_defines': [
+        'public_feature_defines': [
           'ENABLE_OILPAN=1',
         ],
       }],
@@ -99,5 +102,9 @@
         ],
       }],
     ],
+
+    'feature_defines': [
+      '<@(public_feature_defines)'
+    ]
   },
 }