Make chrome/renderer/content_settings_observer.cc depend on //components/contents_settings for IPC

components/content_settings.gypi

Index: components/content_settings.gypi
diff --git a/components/content_settings.gypi b/components/content_settings.gypi
index b0fca0876f3903737b2832d7b516b1882b1ed074..89f2b1a01bbac2698359bd1389f8da47014d793f 100644
--- a/components/content_settings.gypi
+++ b/components/content_settings.gypi
@@ -102,5 +102,26 @@
         'content_settings/core/test/content_settings_test_utils.h',
       ],
     },
+    {
+      # GN version: //components/content_settings/content/common
+      'target_name': 'content_settings_content_common',
+      'type': 'static_library',
+      'dependencies': [
+        'content_settings_core_common',
+        '../base/base.gyp:base',
+        '../content/content.gyp:content_common',
+        '../ipc/ipc.gyp:ipc',
+        '../url/url.gyp:url_lib',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        # Note: sources list duplicated in GN build.
+        'content_settings/content/common/content_settings_message_generator.cc',
+        'content_settings/content/common/content_settings_message_generator.h',
+        'content_settings/content/common/content_settings_messages.h',
+      ],
+    },
   ],
 }