Opening new "about:blank" tab if all tabs are closed in tab switcher mode.

chrome/android/shell/java/src/org/chromium/chrome/shell/TabManager.java

Index: chrome/android/shell/java/src/org/chromium/chrome/shell/TabManager.java
diff --git a/chrome/android/shell/java/src/org/chromium/chrome/shell/TabManager.java b/chrome/android/shell/java/src/org/chromium/chrome/shell/TabManager.java
index fa25a1a4b96c3167d620a7973bdc631b6033c35a..611ff883363182f90af2e5ace2fba905cd020832 100644
--- a/chrome/android/shell/java/src/org/chromium/chrome/shell/TabManager.java
+++ b/chrome/android/shell/java/src/org/chromium/chrome/shell/TabManager.java
@@ -55,7 +55,10 @@ public class TabManager extends LinearLayout {
 
         @Override
         public void willCloseTab(Tab tab, boolean animate) {
-            if (tab == mCurrentTab) setCurrentTab(null);
+            if (tab == mCurrentTab) {
+                hideTabSwitcher();
+                setCurrentTab(mCurrentTab);

[Bernhard Bauer, 2014/11/18 09:05:48]

Wait, why are we doing this?

[divya.bansal, 2014/11/18 09:20:19]

To get last tab so that its profile and url info we can use to create suggestion
popup.Otherwise in SuggestionPopUp.java, in afterTextChanged() function, if
mToolbar.getCurrentTab() == null, we return.

[Bernhard Bauer, 2014/11/18 09:27:58]

But this is called right before we close the tab. The caller assumes that the
tab doesn't exist anymore, and it's removed from the model. We can't just keep
the tab around.

We could do something like opening a new tab with about:blank if the last tab
(not necessarily the current one!) is closed.

[divya.bansal, 2014/11/19 09:51:30]

Done.

+            }
         }
     };