Last_n: Do not save a snapshot of a closing tab.

chrome/android/java/src/org/chromium/chrome/browser/offlinepages/OfflinePageBridge.java

 // Copyright 2015 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.offlinepages;
 
 import org.chromium.base.Callback;
 import org.chromium.base.ObserverList;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.VisibleForTesting;
@@ skipping 426 matching lines @@
         CheckPagesExistOfflineCallbackInternal callbackInternal =
                 new CheckPagesExistOfflineCallbackInternal(callback);
         nativeCheckPagesExistOffline(mNativeOfflinePageBridge, urlArray, callbackInternal);
     }
 
     /** Tells the native side that a new tab has been added for this profile. */
     void registerRecentTab(int tabId) {
         nativeRegisterRecentTab(mNativeOfflinePageBridge, tabId);
     }
 
+    /** Tells the native side that the tab of |webContents| will be closed. */
+    void willCloseTab(WebContents webContents) {
+        nativeWillCloseTab(mNativeOfflinePageBridge, webContents);
+    }
+
     /** Tells the native side that a new tab has been removed for this profile. */
     void unregisterRecentTab(int tabId) {
         nativeUnregisterRecentTab(mNativeOfflinePageBridge, tabId);
     }
 
     @VisibleForTesting
     static void setOfflineBookmarksEnabledForTesting(boolean enabled) {
         sOfflineBookmarksEnabled = enabled;
     }
 
@@ skipping 58 matching lines @@
     private static native boolean nativeIsOfflineBookmarksEnabled();
     private static native boolean nativeIsPageSharingEnabled();
     private static native boolean nativeCanSavePage(String url);
     private static native OfflinePageBridge nativeGetOfflinePageBridgeForProfile(Profile profile);
     @VisibleForTesting
     native void nativeGetAllPages(long nativeOfflinePageBridge, List<OfflinePageItem> offlinePages,
             final Callback<List<OfflinePageItem>> callback);
     private native void nativeCheckPagesExistOffline(long nativeOfflinePageBridge, Object[] urls,
             CheckPagesExistOfflineCallbackInternal callback);
     private native void nativeRegisterRecentTab(long nativeOfflinePageBridge, int tabId);
+    private native void nativeWillCloseTab(long nativeOfflinePageBridge, WebContents webContents);
     private native void nativeUnregisterRecentTab(long nativeOfflinePageBridge, int tabId);
     @VisibleForTesting
     native void nativeGetRequestsInQueue(
             long nativeOfflinePageBridge, Callback<SavePageRequest[]> callback);
     @VisibleForTesting
     native void nativeRemoveRequestsFromQueue(
             long nativeOfflinePageBridge, long[] requestIds, RequestsRemovedCallback callback);
     @VisibleForTesting
     native void nativeGetPageByOfflineId(
             long nativeOfflinePageBridge, long offlineId, Callback<OfflinePageItem> callback);
@@ skipping 10 matching lines @@
             WebContents webContents, String clientNamespace, String clientId);
     private native void nativeSavePageLater(long nativeOfflinePageBridge, String url,
             String clientNamespace, String clientId, boolean userRequested);
     private native String nativeGetOfflinePageHeaderForReload(
             long nativeOfflinePageBridge, WebContents webContents);
     private native boolean nativeIsShowingOfflinePreview(
             long nativeOfflinePageBridge, WebContents webContents);
     private native boolean nativeIsShowingDownloadButtonInErrorPage(
             long nativeOfflinePageBridge, WebContents webContents);
 }