AndroidOverlay implementation using Dialog.

content/browser/frame_host/render_frame_host_android.cc

Index: content/browser/frame_host/render_frame_host_android.cc
diff --git a/content/browser/frame_host/render_frame_host_android.cc b/content/browser/frame_host/render_frame_host_android.cc
index dec25f0d72663cb5f22e7b8e77f13f087d69ba34..490543c71956f9d2e61d46c6c6f917608a617dc4 100644
--- a/content/browser/frame_host/render_frame_host_android.cc
+++ b/content/browser/frame_host/render_frame_host_android.cc
@@ -5,6 +5,7 @@
 #include "content/browser/frame_host/render_frame_host_android.h"
 
 #include "base/android/jni_string.h"
+#include "base/android/unguessable_token_android.h"
 #include "base/logging.h"
 #include "content/browser/frame_host/render_frame_host_delegate.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
@@ -64,4 +65,12 @@ ScopedJavaLocalRef<jstring> RenderFrameHostAndroid::GetLastCommittedURL(
       env, render_frame_host_->GetLastCommittedURL().spec());
 }
 
+ScopedJavaLocalRef<jobject>
+RenderFrameHostAndroid::GetAndroidOverlayRoutingToken(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& obj) const {
+  return base::android::UnguessableTokenAndroid::Create(
+      env, render_frame_host_->GetOverlayRoutingToken());
+}
+
 }  // namespace content