CSS Typed OM: asMatrix for TransformComponent with LengthValue types

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

Index: third_party/WebKit/Source/core/css/cssom/TranslationTransformComponent.cpp
diff --git a/third_party/WebKit/Source/core/css/cssom/TranslationTransformComponent.cpp b/third_party/WebKit/Source/core/css/cssom/TranslationTransformComponent.cpp
index 166be8966244a7c5040a7af0ea901e8f3acd400e..aa6a4b23c93a4eb1606f45d2ac2ce68103510ad5 100644
--- a/third_party/WebKit/Source/core/css/cssom/TranslationTransformComponent.cpp
+++ b/third_party/WebKit/Source/core/css/cssom/TranslationTransformComponent.cpp
@@ -7,6 +7,7 @@
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/css/CSSValuePool.h"
+#include "core/css/cssom/MatrixTransformComponent.h"
 
 namespace blink {
 
@@ -19,6 +20,20 @@ TranslationTransformComponent* TranslationTransformComponent::create(LengthValue
     return new TranslationTransformComponent(x, y, z);
 }
 
+MatrixTransformComponent* TranslationTransformComponent::asMatrix(ExceptionState& exceptionState) const
+{
+    double x = m_x->computeLengthPx(exceptionState);
+    double y = m_y->computeLengthPx(exceptionState);
+    double z = is2D() ? 0 : m_z->computeLengthPx(exceptionState);
+    if (exceptionState.hadException())
+        return nullptr;
+
+    if (is2D())
+        return MatrixTransformComponent::translate(x, y);
+    return MatrixTransformComponent::translate3d(x, y, z);
+}
+
+
 PassRefPtrWillBeRawPtr<CSSFunctionValue> TranslationTransformComponent::toCSSValue() const
 {
     RefPtrWillBeRawPtr<CSSFunctionValue> result = CSSFunctionValue::create(is2D() ? CSSValueTranslate : CSSValueTranslate3d);