Load live version when reloading an offline page on connected network

chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java b/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
index cd2483c6a21fab6f8fc74a00b6e3fb54a8f00278..1cf8f2b1688a7f68f2a9b08e4b4088eb0a146eec 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
@@ -1012,6 +1012,13 @@ public class Tab implements ViewGroup.OnHierarchyChangeListener,
             if (getBlimpContents() != null) {
                 getBlimpContents().getNavigationController().reload();
             }
+        } else if (isOfflinePage()) {
+            // If current page is an offline page, reload it with custom behavior defined in extra
+            // header respected.
+            LoadUrlParams params =
+                    new LoadUrlParams(getOriginalUrl(), PageTransition.RELOAD);
+            params.setVerbatimHeaders(nativeGetOfflinePageHeaderForReload(mNativeTabAndroid));
+            loadUrl(params);
         } else {
             if (getWebContents() != null) getWebContents().getNavigationController().reload(true);
         }
@@ -3295,6 +3302,7 @@ public class Tab implements ViewGroup.OnHierarchyChangeListener,
     private native long nativeGetBookmarkId(long nativeTabAndroid, boolean onlyEditable);
     private native boolean nativeIsOfflinePage(long nativeTabAndroid);
     private native OfflinePageItem nativeGetOfflinePage(long nativeTabAndroid);
+    private native String nativeGetOfflinePageHeaderForReload(long nativeTabAndroid);
     private native void nativeSetInterceptNavigationDelegate(long nativeTabAndroid,
             InterceptNavigationDelegate delegate);
     private native void nativeAttachToTabContentManager(long nativeTabAndroid,