Add third_party/android_data_chart for data chart widget.

third_party/android_snippets/java/src/org/chromium/third_party/android/datausagechart/InvertedChartAxis.java

Index: third_party/android_snippets/java/src/org/chromium/third_party/android/datausagechart/InvertedChartAxis.java
diff --git a/third_party/android_snippets/java/src/org/chromium/third_party/android/datausagechart/InvertedChartAxis.java b/third_party/android_snippets/java/src/org/chromium/third_party/android/datausagechart/InvertedChartAxis.java
new file mode 100644
index 0000000000000000000000000000000000000000..287a63ad723319fcabd5d5038925d3ea238c9cf0
--- /dev/null
+++ b/third_party/android_snippets/java/src/org/chromium/third_party/android/datausagechart/InvertedChartAxis.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2011 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 org.chromium.third_party.android.datausagechart;
+
+import android.content.res.Resources;
+import android.text.SpannableStringBuilder;
+
+/**
+ * Utility to invert another {@link ChartAxis}.
+ * Derived from com.android.settings.widget.InvertedChartAxis
+ */
+public class InvertedChartAxis implements ChartAxis {
+    private final ChartAxis mWrapped;
+    private float mSize;
+
+    public InvertedChartAxis(ChartAxis wrapped) {
+        mWrapped = wrapped;
+    }
+
+    @Override
+    public boolean setBounds(long min, long max) {
+        return mWrapped.setBounds(min, max);
+    }
+
+    @Override
+    public boolean setSize(float size) {
+        mSize = size;
+        return mWrapped.setSize(size);
+    }
+
+    @Override
+    public float convertToPoint(long value) {
+        return mSize - mWrapped.convertToPoint(value);
+    }
+
+    @Override
+    public long convertToValue(float point) {
+        return mWrapped.convertToValue(mSize - point);
+    }
+
+    @Override
+    public long buildLabel(Resources res, SpannableStringBuilder builder, long value) {
+        return mWrapped.buildLabel(res, builder, value);
+    }
+
+    @Override
+    public float[] getTickPoints() {
+        final float[] points = mWrapped.getTickPoints();
+        for (int i = 0; i < points.length; i++) {
+            points[i] = mSize - points[i];
+        }
+        return points;
+    }
+
+    @Override
+    public int shouldAdjustAxis(long value) {
+        return mWrapped.shouldAdjustAxis(value);
+    }
+}