Implement form resubmission warning for Android.

chrome/android/java/src/org/chromium/chrome/browser/TabBase.java

Index: chrome/android/java/src/org/chromium/chrome/browser/TabBase.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/TabBase.java b/chrome/android/java/src/org/chromium/chrome/browser/TabBase.java
index 559ac0278c2eec7134c65b5c51372bde87e85acc..0a74c39e957b23aefc70b21eb91e51fd2a7475d4 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/TabBase.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/TabBase.java
@@ -5,12 +5,14 @@
 package org.chromium.chrome.browser;
 
 import android.app.Activity;
+import android.app.Dialog;
 import android.content.Context;
 import android.graphics.Color;
 import android.view.View;
 
 import org.chromium.base.CalledByNative;
 import org.chromium.base.ObserverList;
+import org.chromium.chrome.browser.RepostFormWarningDialog;
 import org.chromium.chrome.browser.infobar.AutoLoginProcessor;
 import org.chromium.chrome.browser.infobar.InfoBarContainer;
 import org.chromium.chrome.browser.profiles.Profile;
@@ -109,6 +111,24 @@ public abstract class TabBase implements NavigationClient {
         }
 
         @Override
+        public void showRepostFormWarningDialog(final ContentViewCore contentViewCore) {
+            RepostFormWarningDialog warningDialog = new RepostFormWarningDialog(
+                    new Runnable() {
+                        @Override
+                        public void run() {
+                            contentViewCore.cancelPendingReload();
+                        }
+                    }, new Runnable() {
+                        @Override
+                        public void run() {
+                            contentViewCore.continuePendingReload();
+                        }
+                    });
+            Activity activity = (Activity)mContext;
+            warningDialog.show(activity.getFragmentManager(), null);
+        }
+
+        @Override
         public void toggleFullscreenModeForTab(boolean enableFullscreen) {
             for (TabObserver observer: mObservers) {
                 observer.onToggleFullscreenMode(TabBase.this, enableFullscreen);