Introduce KeyframeEffectReadOnly interface

third_party/WebKit/Source/core/animation/KeyframeEffectReadOnly.h

Index: third_party/WebKit/Source/core/animation/KeyframeEffectReadOnly.h
diff --git a/third_party/WebKit/Source/core/animation/KeyframeEffectReadOnly.h b/third_party/WebKit/Source/core/animation/KeyframeEffectReadOnly.h
new file mode 100644
index 0000000000000000000000000000000000000000..ac93bc0e5d0439c6d982cc8ca4786b5b43a28286
--- /dev/null
+++ b/third_party/WebKit/Source/core/animation/KeyframeEffectReadOnly.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2016 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef KeyframeEffectReadOnly_h
+#define KeyframeEffectReadOnly_h
+
+#include "core/CoreExport.h"
+#include "core/animation/AnimationEffectReadOnly.h"
+#include "core/animation/EffectModel.h"
+
+namespace blink {
+
+class KeyframeEffectOptions;
+class DictionarySequenceOrDictionary;
+class Element;
+class ExceptionState;
+class ExecutionContext;
+class SampledEffect;
+
+// Represents the effect of an Animation on an Element's properties.
+// http://w3c.github.io/web-animations/#the-keyframeeffect-interfaces
+class CORE_EXPORT KeyframeEffectReadOnly : public AnimationEffectReadOnly {
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    enum Priority { DefaultPriority, TransitionPriority };

[alancutter (OOO until 2018), 2016/09/27 05:09:05]

Leave Priority in KeyframeEffect since it's not necessary for the
KeyframeEffectReadOnly interface. This also saves unnecessary churn elsewhere in
the code.

[suzyh_UTC10 (ex-contributor), 2016/09/27 07:21:59]

Done.

+
+    static KeyframeEffectReadOnly* create(ExecutionContext*, Element*, const DictionarySequenceOrDictionary& effectInput, double duration, ExceptionState&);
+    static KeyframeEffectReadOnly* create(ExecutionContext*, Element*, const DictionarySequenceOrDictionary& effectInput, const KeyframeEffectOptions& timingInput, ExceptionState&);
+    static KeyframeEffectReadOnly* create(ExecutionContext*, Element*, const DictionarySequenceOrDictionary& effectInput, ExceptionState&);
+
+    ~KeyframeEffectReadOnly() override;
+
+    DECLARE_VIRTUAL_TRACE();
+
+protected:
+    KeyframeEffectReadOnly(Element*, EffectModel*, const Timing&, Priority, EventDelegate*);
+
+    Member<Element> m_target;
+    Member<EffectModel> m_model;
+    Member<SampledEffect> m_sampledEffect;
+
+    Priority m_priority;
+};
+
+} // namespace blink
+
+#endif // KeyframeEffectReadOnly_h