cc: Replace the WebCore::UnitBezier class with the SkUnitCubicInterp() method from Skia.

cc/stubs/unit_bezier.h

Index: cc/stubs/unit_bezier.h
diff --git a/cc/stubs/unit_bezier.h b/cc/stubs/unit_bezier.h
deleted file mode 100644
index 1ff5da9d2a2bd9b92a04c8df8d8c47b009c11655..0000000000000000000000000000000000000000
--- a/cc/stubs/unit_bezier.h
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// TODO(jamesr): Remove or refactor this dependency.
-#if INSIDE_WEBKIT_BUILD
-#include "Source/WebCore/platform/graphics/UnitBezier.h"
-#else
-#include "third_party/WebKit/Source/WebCore/platform/graphics/UnitBezier.h"
-#endif
-
-namespace cc {
-typedef WebCore::UnitBezier UnitBezier;
-}