diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/src/animator/SkDisplayRandom.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/src/animator/SkDisplayRandom.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,65 @@
+
+/*
+ * Copyright 2006 The Android Open Source Project
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+
+#include "SkDisplayRandom.h"
+#include "SkInterpolator.h"
+
+enum SkDisplayRandom_Properties {
+    SK_PROPERTY(random),
+    SK_PROPERTY(seed)
+};
+
+#if SK_USE_CONDENSED_INFO == 0
+
+const SkMemberInfo SkDisplayRandom::fInfo[] = {
+    SK_MEMBER(blend, Float),
+    SK_MEMBER(max, Float),
+    SK_MEMBER(min, Float),
+    SK_MEMBER_DYNAMIC_PROPERTY(random, Float),
+    SK_MEMBER_PROPERTY(seed, Int)
+};
+
+#endif
+
+DEFINE_GET_MEMBER(SkDisplayRandom);
+
+SkDisplayRandom::SkDisplayRandom() : blend(0), min(0), max(SK_Scalar1) {
+}
+
+#ifdef SK_DUMP_ENABLED
+void SkDisplayRandom::dump(SkAnimateMaker* maker) {
+    dumpBase(maker);
+    SkDebugf("min=\"%g\" ", SkScalarToFloat(min));
+    SkDebugf("max=\"%g\" ", SkScalarToFloat(max));
+    SkDebugf("blend=\"%g\" ", SkScalarToFloat(blend));
+    SkDebugf("/>\n");
+}
+#endif
+
+bool SkDisplayRandom::getProperty(int index, SkScriptValue* value) const {
+    switch(index) {
+        case SK_PROPERTY(random): {
+            SkScalar random = fRandom.nextUScalar1();
+            SkScalar relativeT = SkUnitCubicInterp(random, SK_Scalar1 - blend, 0, 0, SK_Scalar1 - blend);
+            value->fOperand.fScalar = min + SkScalarMul(max - min, relativeT);
+            value->fType = SkType_Float;
+            return true;
+        }
+        default:
+            SkASSERT(0);
+    }
+    return false;
+}
+
+bool SkDisplayRandom::setProperty(int index, SkScriptValue& value) {
+    SkASSERT(index == SK_PROPERTY(seed));
+    SkASSERT(value.fType == SkType_Int);
+    fRandom.setSeed(value.fOperand.fS32);
+    return true;
+}