[Autofill]Enable mojo AutofillDriver 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 decb036bdb10f9d0bac174d4ef13a9befa9a96ab..5922a6660720241a44a25cb95fbe60c3d0aacc81 100644
--- a/android_webview/browser/aw_content_browser_client.cc
+++ b/android_webview/browser/aw_content_browser_client.cc
@@ -31,6 +31,7 @@
 #include "base/files/scoped_file.h"
 #include "base/memory/ptr_util.h"
 #include "base/path_service.h"
+#include "components/autofill/content/browser/content_autofill_driver_factory.h"
 #include "components/cdm/browser/cdm_message_filter_android.h"
 #include "components/crash/content/browser/crash_micro_dump_manager_android.h"
 #include "components/navigation_interception/intercept_navigation_delegate.h"
@@ -52,6 +53,7 @@
 #include "net/android/network_library.h"
 #include "net/ssl/ssl_cert_request_info.h"
 #include "net/ssl/ssl_info.h"
+#include "services/service_manager/public/cpp/interface_registry.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/resource/resource_bundle_android.h"
 #include "ui/resources/grit/ui_resources.h"
@@ -531,4 +533,12 @@ AwContentBrowserClient::GetDevToolsManagerDelegate() {
   return new AwDevToolsManagerDelegate();
 }
 
+void AwContentBrowserClient::RegisterRenderFrameMojoInterfaces(
+    service_manager::InterfaceRegistry* registry,
+    content::RenderFrameHost* render_frame_host) {
+  registry->AddInterface(
+      base::Bind(&autofill::ContentAutofillDriverFactory::BindAutofillDriver,
+                 render_frame_host));
+}
+
 }  // namespace android_webview