[Custom Tabs] Implement "Read It Later" Behind a Flag

chrome/android/java/src/org/chromium/chrome/browser/tabmodel/ChromeTabCreator.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tabmodel/ChromeTabCreator.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/ChromeTabCreator.java b/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/ChromeTabCreator.java
index 02f7079dbfd2dfbec3271a90fbf62d919b83b4d3..46668ebaf6e819fc83018ce25db3526a7632de22 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/ChromeTabCreator.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/ChromeTabCreator.java
@@ -5,10 +5,12 @@
 package org.chromium.chrome.browser.tabmodel;
 
 import android.content.Intent;
+import android.os.Handler;
 import android.text.TextUtils;
 
 import org.chromium.base.SysUtils;
 import org.chromium.base.TraceEvent;
+import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.IntentHandler;
 import org.chromium.chrome.browser.TabState;
@@ -25,11 +27,13 @@ import org.chromium.content_public.browser.WebContents;
 import org.chromium.content_public.common.Referrer;
 import org.chromium.ui.base.PageTransition;
 import org.chromium.ui.base.WindowAndroid;
+import org.chromium.ui.widget.Toast;
 
 /**
  * This class creates various kinds of new tabs and adds them to the right {@link TabModel}.
  */
 public class ChromeTabCreator extends TabCreatorManager.TabCreator {
+    private static final int VISIBLE_DURATION_MS = 600;
 
     private final ChromeActivity mActivity;
     private final WindowAndroid mNativeWindow;
@@ -165,6 +169,20 @@ public class ChromeTabCreator extends TabCreatorManager.TabCreator {
             }
 
             mTabModel.addTab(tab, position, type);
+
+            if (type == TabLaunchType.FROM_REPARENTING) {
+                TabReparentingParams params = (TabReparentingParams) asyncParams;
+                if (!params.shouldStayInChrome()) {
+                    new Handler().postDelayed(new Runnable() {
+                        @Override
+                        public void run() {
+                            mActivity.moveTaskToBack(true);
+                            Toast.makeText(mActivity, R.string.tab_sent_to_background,
+                                    Toast.LENGTH_LONG).show();
+                        }
+                    }, VISIBLE_DURATION_MS);
+                }
+            }
             return tab;
         } finally {
             TraceEvent.end("ChromeTabCreator.createNewTab");