Native input event dispatching.

Target identification is now fully native.
Fixed a couple of minor issues related to input injection.
Native input enabled by default, can be disabled by setting
WindowManagerPolicy.ENABLE_NATIVE_INPUT_DISPATCH to false.

Change-Id: I7edf66ed3e987cc9306ad4743ac57a116af452ff

services/java/com/android/server/InputWindow.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2010 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.server;
+
+import android.view.InputChannel;
+
+/**
+ * Describes input-related window properties for use by the input dispatcher.
+ * 
+ * @hide
+ */
+public final class InputWindow {
+    // The input channel associated with the window.
+    public InputChannel inputChannel;
+    
+    // Window layout params attributes.  (WindowManager.LayoutParams)
+    public int layoutParamsFlags;
+    public int layoutParamsType;
+    
+    // Dispatching timeout.
+    public long dispatchingTimeoutNanos;
+    
+    // Window frame position.
+    public int frameLeft;
+    public int frameTop;
+    
+    // Window touchable area.
+    public int touchableAreaLeft;
+    public int touchableAreaTop;
+    public int touchableAreaRight;
+    public int touchableAreaBottom;
+    
+    // Window is visible.
+    public boolean visible;
+    
+    // Window has focus.
+    public boolean hasFocus;
+    
+    // Window has wallpaper.  (window is the current wallpaper target)
+    public boolean hasWallpaper;
+    
+    // Input event dispatching is paused.
+    public boolean paused;
+    
+    // Id of process and user that owns the window.
+    public int ownerPid;
+    public int ownerUid;
+    
+    public void recycle() {
+        inputChannel = null;
+    }
+}