Keyboard should not be displayed 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..36261cc03b48cde3361d813bbba1723c9ce3fe37 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
@@ -10,6 +10,7 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewParent;
+import android.view.inputmethod.InputMethodManager;
 import android.widget.FrameLayout;
 import android.widget.LinearLayout;
 
@@ -216,6 +217,9 @@ public class TabManager extends LinearLayout {
             mContentViewHolder.addView(mTabModelWrapper);
         }
         mToolbar.showAddButton(true);
+        InputMethodManager mImm = (InputMethodManager) getContext().getSystemService(
+                Context.INPUT_METHOD_SERVICE);
+        mImm.hideSoftInputFromWindow(mContentViewHolder.getWindowToken(), 0);
     }
 
     /**