Animation: FilterStyleInterpolation for animating filter

Source/core/css/CSSValueList.h

Index: Source/core/css/CSSValueList.h
diff --git a/Source/core/css/CSSValueList.h b/Source/core/css/CSSValueList.h
index e938f0756b12de2e3b64799d74dd95d25ab4780e..b3a0636f71eeed7c93d5abcff0a36cde890d2f98 100644
--- a/Source/core/css/CSSValueList.h
+++ b/Source/core/css/CSSValueList.h
@@ -30,6 +30,7 @@ namespace blink {
 class CSSValueList : public CSSValue {
 public:
     using iterator = WillBeHeapVector<RefPtrWillBeMember<CSSValue>, 4>::iterator;
+    using const_iterator = WillBeHeapVector<RefPtrWillBeMember<CSSValue>, 4>::const_iterator;

[Timothy Loh, 2015/04/08 07:59:43]

needs a rebase? I think we have these already

[Eric Willigers, 2015/04/08 08:30:40]

Done.

 
     static PassRefPtrWillBeRawPtr<CSSValueList> createCommaSeparated()
     {
@@ -46,6 +47,8 @@ public:
 
     iterator begin() { return m_values.begin(); }
     iterator end() { return m_values.end(); }
+    const_iterator begin() const { return m_values.begin(); }
+    const_iterator end() const { return m_values.end(); }
 
     size_t length() const { return m_values.size(); }
     CSSValue* item(size_t index) { return m_values[index].get(); }