AndroidOverlay implementation using Dialog.

content/public/android/java/src/org/chromium/content/browser/framehost/RenderFrameHostImpl.java

Index: content/public/android/java/src/org/chromium/content/browser/framehost/RenderFrameHostImpl.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/framehost/RenderFrameHostImpl.java b/content/public/android/java/src/org/chromium/content/browser/framehost/RenderFrameHostImpl.java
index 3514a2d8045b1ac3660c4f29a936d2ddbcd11352..28755981abc9b7bac6f80e76b23fc2483bad9805 100644
--- a/content/public/android/java/src/org/chromium/content/browser/framehost/RenderFrameHostImpl.java
+++ b/content/public/android/java/src/org/chromium/content/browser/framehost/RenderFrameHostImpl.java
@@ -4,6 +4,7 @@
 
 package org.chromium.content.browser.framehost;
 
+import org.chromium.base.UnguessableToken;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.content_public.browser.RenderFrameHost;
@@ -63,5 +64,15 @@ public class RenderFrameHostImpl implements RenderFrameHost {
         return mIncognito;
     }
 
+    /**
+     * Return the AndroidOverlay routing token for this RenderFrameHostImpl.
+     */
+    public UnguessableToken getAndroidOverlayRoutingToken() {
+        if (mNativeRenderFrameHostAndroid == 0) return null;
+        return nativeGetAndroidOverlayRoutingToken(mNativeRenderFrameHostAndroid);
+    }
+
     private native String nativeGetLastCommittedURL(long nativeRenderFrameHostAndroid);
+    private native UnguessableToken nativeGetAndroidOverlayRoutingToken(
+            long nativeRenderFrameHostAndroid);
 }