Cleanup ios/web_view.

ios/web_view/public/BUILD.gn

Index: ios/web_view/public/BUILD.gn
diff --git a/ios/web_view/public/BUILD.gn b/ios/web_view/public/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..8b3eb9f000ed9c378a108200d653c1905437c976
--- /dev/null
+++ b/ios/web_view/public/BUILD.gn
@@ -0,0 +1,21 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+source_set("public") {
+  visibility = [
+    "//ios/web_view",
+    "//ios/web_view/internal/*",
+  ]
+
+  sources = [
+    "criwv.h",
+    "criwv_delegate.h",
+    "criwv_translate_delegate.h",
+    "criwv_translate_manager.h",
+    "criwv_web_view.h",
+    "criwv_web_view_delegate.h",
+  ]
+
+  libs = [ "UIKit.framework" ]
+}