Only call doUpdateVisitedHistory for the main frame.

android_webview/java/src/org/chromium/android_webview/AwWebContentsObserver.java

Index: android_webview/java/src/org/chromium/android_webview/AwWebContentsObserver.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwWebContentsObserver.java b/android_webview/java/src/org/chromium/android_webview/AwWebContentsObserver.java
index 56d09a962cf4bae084ac30ab5b2ad55ca0b0a443..50edaf629b3f8741b94726911965dcf58af437c9 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwWebContentsObserver.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwWebContentsObserver.java
@@ -100,6 +100,8 @@ public class AwWebContentsObserver extends WebContentsObserver {
 
         mCommittedNavigation = true;
 
+        if (!isInMainFrame) return;
+
         AwContentsClient client = mAwContentsClient.get();
         if (hasCommitted && client != null) {
             boolean isReload = pageTransition != null
@@ -107,8 +109,6 @@ public class AwWebContentsObserver extends WebContentsObserver {
             client.getCallbackHelper().postDoUpdateVisitedHistory(url, isReload);
         }
 
-        if (!isInMainFrame) return;
-
         // Only invoke the onPageCommitVisible callback when navigating to a different document,
         // but not when navigating to a different fragment within the same document.
         if (!isSameDocument) {