Extract permission alias info from PermissionsProvider

extensions/common/BUILD.gn

Index: extensions/common/BUILD.gn
diff --git a/extensions/common/BUILD.gn b/extensions/common/BUILD.gn
index 25acd0c86730994f16360b372fe2881538b48a14..5727aed13d3d0e6f642fa5d24bea0b63a8373a17 100644
--- a/extensions/common/BUILD.gn
+++ b/extensions/common/BUILD.gn
@@ -34,6 +34,10 @@ if (enable_extensions) {
   # in. TODO(brettw): This reverse dependency should be fixed.
   static_library("common") {
     sources = [
+      "alias.cc",
+      "alias.h",
+      "alias_provider.cc",
+      "alias_provider.h",
       "api/bluetooth/bluetooth_manifest_data.cc",
       "api/bluetooth/bluetooth_manifest_data.h",
       "api/bluetooth/bluetooth_manifest_handler.cc",
@@ -55,6 +59,8 @@ if (enable_extensions) {
       "api/sockets/sockets_manifest_handler.h",
       "api/sockets/sockets_manifest_permission.cc",
       "api/sockets/sockets_manifest_permission.h",
+      "api_alias_info.cc",
+      "api_alias_info.h",
       "common_manifest_handlers.cc",
       "common_manifest_handlers.h",
       "csp_validator.cc",
@@ -92,6 +98,8 @@ if (enable_extensions) {
       "extension_urls.cc",
       "extension_urls.h",
       "extension_utility_messages.h",
+      "extensions_alias_provider.cc",
+      "extensions_alias_provider.h",
       "extensions_client.cc",
       "extensions_client.h",
       "feature_switch.cc",