Shortcut ctrl+shift+T added on android.

chrome/android/java/src/org/chromium/chrome/browser/ntp/RecentlyClosedBridge.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/RecentlyClosedBridge.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/RecentlyClosedBridge.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/RecentlyClosedBridge.java
index ed7b53de4c081a1bf474fbfe8f9383d6b641cec9..a75668e2c4c9c007bdc062f890b550df79a2a68d 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/RecentlyClosedBridge.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/RecentlyClosedBridge.java
@@ -14,7 +14,7 @@ import java.util.List;
 /**
  * This class allows Java code to get and clear the list of recently closed tabs.
  */
-class RecentlyClosedBridge {
+public class RecentlyClosedBridge {
     private long mNativeRecentlyClosedTabsBridge;
 
     /**
@@ -45,6 +45,13 @@ class RecentlyClosedBridge {
             this.url = url;
         }
     }
+    /**
+     * Opens the most recently closed tab. Read data from tab restore service in native code, and

[Theresa, 2016/06/30 20:50:24]

nit: move this down by the other openRecentlyClosedTab()

Also, maybe we should rename this openMostRecentlyClosedTab() so that it's a bit
more obvious how the two methods differ. We should also make the comment more
similar to the comment for the existing openRecentlyClosedTab(), e,g, "Opens the
most recently closed tab in a new tab."

[xingliu, 2016/07/01 00:30:38]

Done.

+     * open a new tab.
+     */
+    public void openRecentlyClosedTab() {
+        nativeOpenMostRecentlyClosedTab(mNativeRecentlyClosedTabsBridge);
+    }
 
     @CalledByNative
     private static void pushTab(
@@ -57,14 +64,14 @@ class RecentlyClosedBridge {
      * Initializes this class with the given profile.
      * @param profile The Profile whose recently closed tabs will be queried.
      */
-    RecentlyClosedBridge(Profile profile) {
+    public RecentlyClosedBridge(Profile profile) {
         mNativeRecentlyClosedTabsBridge = nativeInit(profile);
     }
 
     /**
      * Cleans up the C++ side of this class. This instance must not be used after calling destroy().
      */
-    void destroy() {
+    public void destroy() {
         assert mNativeRecentlyClosedTabsBridge != 0;
         nativeDestroy(mNativeRecentlyClosedTabsBridge);
         mNativeRecentlyClosedTabsBridge = 0;
@@ -120,5 +127,6 @@ class RecentlyClosedBridge {
             long nativeRecentlyClosedTabsBridge, List<RecentlyClosedTab> tabs, int maxTabCount);
     private native boolean nativeOpenRecentlyClosedTab(long nativeRecentlyClosedTabsBridge,
             Tab tab, int recentTabId, int windowOpenDisposition);
+    private native boolean nativeOpenMostRecentlyClosedTab(long nativeRecentlyClosedTabsBridge);
     private native void nativeClearRecentlyClosedTabs(long nativeRecentlyClosedTabsBridge);
 }