CSS Typed OM: Implement TransformValue::asMatrix

third_party/WebKit/Source/core/css/cssom/TransformValue.cpp

Index: third_party/WebKit/Source/core/css/cssom/TransformValue.cpp
diff --git a/third_party/WebKit/Source/core/css/cssom/TransformValue.cpp b/third_party/WebKit/Source/core/css/cssom/TransformValue.cpp
index 4efb5692eb49f18913a41b28c8cced02895bff96..72524f313b77beca4d7c33c6e36efb035cb5d4f1 100644
--- a/third_party/WebKit/Source/core/css/cssom/TransformValue.cpp
+++ b/third_party/WebKit/Source/core/css/cssom/TransformValue.cpp
@@ -4,7 +4,9 @@
 
 #include "core/css/cssom/TransformValue.h"
 
+#include "bindings/core/v8/ExceptionState.h"
 #include "core/css/CSSValueList.h"
+#include "core/css/cssom/MatrixTransformComponent.h"
 #include "core/css/cssom/TransformComponent.h"
 
 namespace blink {
@@ -60,7 +62,20 @@ PassRefPtrWillBeRawPtr<CSSValue> TransformValue::toCSSValue() const
     for (size_t i = 0; i < m_transformComponents.size(); i++) {
         transformCSSValue->append(m_transformComponents[i]->toCSSValue());
     }
-    return transformCSSValue;
+    return transformCSSValue.release();
+}
+
+MatrixTransformComponent* TransformValue::asMatrix(ExceptionState& exceptionState) const
+{
+    MatrixTransformComponent* result = new MatrixTransformComponent();
+    for (TransformComponent* component : m_transformComponents) {
+        MatrixTransformComponent* componentAsMatrix = component->asMatrix(exceptionState);
+        if (exceptionState.hadException()) {
+            return nullptr;
+        }
+        result->multiplySelf(componentAsMatrix);
+    }
+    return result;
 }
 
 } // namespace blink