Remove redundant size member from InterpolableList

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

Index: third_party/WebKit/Source/core/animation/InterpolableValue.h
diff --git a/third_party/WebKit/Source/core/animation/InterpolableValue.h b/third_party/WebKit/Source/core/animation/InterpolableValue.h
index 1c214ed04e9e451d42b017c756e3e8225a68c814..97944a0c930800711520481801be1202f8306a15 100644
--- a/third_party/WebKit/Source/core/animation/InterpolableValue.h
+++ b/third_party/WebKit/Source/core/animation/InterpolableValue.h
@@ -122,20 +122,17 @@ public:
     bool isList() const final { return true; }
     void set(size_t position, std::unique_ptr<InterpolableValue> value)
     {
-        DCHECK_LT(position, m_size);
         m_values[position] = std::move(value);
     }
     const InterpolableValue* get(size_t position) const
     {
-        DCHECK_LT(position, m_size);
         return m_values[position].get();
     }
     std::unique_ptr<InterpolableValue>& getMutable(size_t position)
     {
-        DCHECK_LT(position, m_size);

[alancutter (OOO until 2018), 2016/08/25 02:03:53]

These checks are already performed by Vector::at() as RELEASE_ASSERTs.

         return m_values[position];
     }
-    size_t length() const { return m_size; }
+    size_t length() const { return m_values.size(); }
     bool equals(const InterpolableValue& other) const final;
     std::unique_ptr<InterpolableValue> clone() const final { return create(*this); }
     std::unique_ptr<InterpolableValue> cloneAndZero() const final;
@@ -145,20 +142,17 @@ public:
 private:
     void interpolate(const InterpolableValue& to, const double progress, InterpolableValue& result) const final;
     explicit InterpolableList(size_t size)
-        : m_size(size)
-        , m_values(m_size)
+        : m_values(size)
     {
     }
 
     InterpolableList(const InterpolableList& other)
-        : m_size(other.m_size)
-        , m_values(m_size)
+        : m_values(other.length())
     {
-        for (size_t i = 0; i < m_size; i++)
+        for (size_t i = 0; i < length(); i++)
             set(i, other.m_values[i]->clone());
     }
 
-    size_t m_size;
     Vector<std::unique_ptr<InterpolableValue>> m_values;
 };