Back button dismisses notifications again.

Bug: 6441337
Change-Id: Iabc97cd2a3f66ee2af5406807b3023908965b8c8
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
new file mode 100644
index 0000000..0fc5b4d
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.statusbar.phone;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.KeyEvent;
+import android.widget.FrameLayout;
+import android.widget.TextSwitcher;
+
+
+public class StatusBarWindowView extends FrameLayout
+{
+    PhoneStatusBar mService;
+
+    public StatusBarWindowView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    public boolean dispatchKeyEvent(KeyEvent event) {
+        boolean down = event.getAction() == KeyEvent.ACTION_DOWN;
+        switch (event.getKeyCode()) {
+        case KeyEvent.KEYCODE_BACK:
+            if (!down) {
+                mService.animateCollapse();
+            }
+            return true;
+        }
+        return super.dispatchKeyEvent(event);
+    }
+}
+