New Composite CSS border object

experimental/ChromeUtils/SkBorder.cpp

+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkBorder.h"
+
+SkBorder::SkBorder(SkPaint& p, SkScalar width, BorderStyle style)
+    : fFlags(kOnePaint_Flag) {
+    fPaints[0] = p;
+
+    for (int i = 0; i < 4; ++i) {
+        fWidths[i] = width;
+        fStyles[i] = style;
+    }
+}
+
+SkBorder::SkBorder(const SkPaint paints[4],
+                   const SkScalar widths[4], 
+                   const BorderStyle styles[4]) 
+    : fFlags(0) {
+    for (int i = 0; i < 4; ++i) {
+        fPaints[i] = paints[i];
+    }
+
+    memcpy(fWidths, widths, sizeof(fWidths));
+    memcpy(fStyles, styles, sizeof(fStyles));
+}
+