[Autofill] Add a content_renderer manifest overlay for android_webview.

android_webview/browser/aw_content_browser_client.cc

Index: android_webview/browser/aw_content_browser_client.cc
diff --git a/android_webview/browser/aw_content_browser_client.cc b/android_webview/browser/aw_content_browser_client.cc
index 9e871861a4f28a1861fbce9575a8de6e11eac125..a6bb56546a7109084126a3105ee4849681f6040c 100644
--- a/android_webview/browser/aw_content_browser_client.cc
+++ b/android_webview/browser/aw_content_browser_client.cc
@@ -534,6 +534,8 @@ AwContentBrowserClient::GetServiceManifestOverlay(const std::string& name) {
   int id = -1;
   if (name == content::mojom::kBrowserServiceName)
     id = IDR_AW_BROWSER_MANIFEST_OVERLAY;
+  else if (name == content::mojom::kRendererServiceName)
+    id = IDR_AW_RENDERER_MANIFEST_OVERLAY;
   if (id == -1)
     return nullptr;