Work toward a chrome/common GN target.

chrome/BUILD.gn

Index: chrome/BUILD.gn
diff --git a/chrome/BUILD.gn b/chrome/BUILD.gn
index 3aeafb07849b67f5efcc8dd8e41014a856734305..d700690a762edab8d79184acffab81a8b6d3f897 100644
--- a/chrome/BUILD.gn
+++ b/chrome/BUILD.gn
@@ -19,3 +19,13 @@ group("resources") {
     deps += [ "//chrome/common:extensions_api_resources" ]
   }
 }
+
+# GYP version: chrome/chrome_resources.gyp:chrome_strings
+group("strings") {
+  deps = [
+    "//chrome/app:chromium_strings",
+    "//chrome/app:generated_resources",
+    "//chrome/app:google_chrome_strings",
+    "//chrome/app/resources:locale_settings",
+  ]
+}