SufaceComposition performance test.

Implement set of low-level tests to measure graphics performance.

Design and test result:
https://docs.google.com/a/google.com/document/d/1LYlUxjjmC2JBulAIIO8UVfvjeHWEALzgyUzqMMzwiGE/edit?usp=sharing

Change-Id: I48efbce5dcdac1b8caa2cd332777ce0b06d40ed2
diff --git a/tests/SurfaceComposition/src/android/surfacecomposition/CustomLayout.java b/tests/SurfaceComposition/src/android/surfacecomposition/CustomLayout.java
new file mode 100644
index 0000000..d626f10
--- /dev/null
+++ b/tests/SurfaceComposition/src/android/surfacecomposition/CustomLayout.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2015 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 android.surfacecomposition;
+
+import android.content.Context;
+import android.view.View;
+import android.view.ViewGroup;
+
+public class CustomLayout extends ViewGroup {
+    public CustomLayout(Context context) {
+        super(context);
+    }
+
+    public static class LayoutParams extends ViewGroup.LayoutParams {
+        private int mLeft, mTop, mRight, mBottom;
+
+        public LayoutParams(int left, int top, int right, int bottom) {
+            super(0, 0);
+            mLeft = left;
+            mTop = top;
+            mRight = right;
+            mBottom = bottom;
+        }
+    }
+
+    @Override
+    protected void onLayout(boolean changed, int l, int t, int r, int b) {
+        final int count = getChildCount();
+        for (int i = 0; i < count; i++) {
+            View child = getChildAt(i);
+            CustomLayout.LayoutParams lp = (CustomLayout.LayoutParams) child.getLayoutParams();
+            child.layout(lp.mLeft, lp.mTop, lp.mRight, lp.mBottom);
+        }
+    }
+}