Upstream historical tab logic

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

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser;
 
 import android.os.Handler;
 import android.util.Log;
 
 import org.chromium.base.VisibleForTesting;
@@ skipping 63 matching lines @@
         }
 
         /**
          * Creates a WebContents from the buffer.
          * @param isHidden Whether or not the tab initially starts hidden.
          * @return Pointer to the native WebContents.
          */
         public long restoreContentsFromByteBuffer(boolean isHidden) {
             return nativeRestoreContentsFromByteBuffer(mBuffer, mVersion, isHidden);
         }
+
+        /**
+         * Creates a WebContents for the ContentsState and adds it as an historical tab, then
+         * deletes the WebContents.
+         */
+        public void createHistoricalTab() {
+            nativeCreateHistoricalTab(mBuffer, mVersion);
+        }
     }
 
     /** Deletes the native-side portion of the buffer. */
     public static class WebContentsStateNative extends WebContentsState {
         private final Handler mHandler;
 
         public WebContentsStateNative(ByteBuffer buffer) {
             super(buffer);
             this.mHandler = new Handler();
         }
@@ skipping 241 matching lines @@
     private static native ByteBuffer nativeCreateSingleNavigationStateAsByteBuffer(
             String url, String referrerUrl, int referrerPolicy, boolean isIncognito);
 
     private static native String nativeGetDisplayTitleFromByteBuffer(
             ByteBuffer state, int savedStateVersion);
 
     private static native String nativeGetVirtualUrlFromByteBuffer(
             ByteBuffer state, int savedStateVersion);
 
     private static native void nativeFreeWebContentsStateBuffer(ByteBuffer buffer);
+
+    private static native void nativeCreateHistoricalTab(ByteBuffer state, int savedStateVersion);
 }