[GeometryInterface] Add fromFloat32Array & fromFloat64Array function

third_party/WebKit/Source/core/dom/DOMMatrixReadOnly.cpp

Index: third_party/WebKit/Source/core/dom/DOMMatrixReadOnly.cpp
diff --git a/third_party/WebKit/Source/core/dom/DOMMatrixReadOnly.cpp b/third_party/WebKit/Source/core/dom/DOMMatrixReadOnly.cpp
index 252d8e9d058b7cf1a4903d23745e798eada44724..82b6298d50fa4119469185be3b3be533b3784fd3 100644
--- a/third_party/WebKit/Source/core/dom/DOMMatrixReadOnly.cpp
+++ b/third_party/WebKit/Source/core/dom/DOMMatrixReadOnly.cpp
@@ -9,29 +9,29 @@ namespace blink {
 DOMMatrixReadOnly* DOMMatrixReadOnly::create(Vector<double> sequence, ExceptionState& exceptionState)
 {
     if (sequence.size() != 6 && sequence.size() != 16) {
-        exceptionState.throwTypeError("An invalid number sequence is specified. The sequence must contain 6 elements for 2D matrix and 16 elements for 3D matrix.");
+        exceptionState.throwTypeError("The sequence must contain 6 elements for a 2D matrix or 16 elements for a 3D matrix.");
         return nullptr;
     }
-    return new DOMMatrixReadOnly(sequence);
-}
-
-DOMMatrixReadOnly::DOMMatrixReadOnly(Vector<double> sequence)
-{
-    if (sequence.size() == 6) {
-        m_matrix = TransformationMatrix::create(
-            sequence[0], sequence[1], sequence[2], sequence[3],
-            sequence[4], sequence[5]);
-        m_is2D = true;
-    } else if (sequence.size() == 16) {
-        m_matrix = TransformationMatrix::create(
-            sequence[0], sequence[1], sequence[2], sequence[3],
-            sequence[4], sequence[5], sequence[6], sequence[7],
-            sequence[8], sequence[9], sequence[10], sequence[11],
-            sequence[12], sequence[13], sequence[14], sequence[15]);
-        m_is2D = false;
-    } else {
-        NOTREACHED();
+    return new DOMMatrixReadOnly(sequence, sequence.size());
+}
+
+DOMMatrixReadOnly* DOMMatrixReadOnly::fromFloat32Array(DOMFloat32Array* float32Array, ExceptionState& exceptionState)
+{
+    if (float32Array->length() != 6 && float32Array->length() != 16) {
+        exceptionState.throwTypeError("The sequence must contain 6 elements for a 2D matrix or 16 elements a for 3D matrix.");
+        return nullptr;
+    }
+    return new DOMMatrixReadOnly(float32Array->data(), float32Array->length());
+}
+
+
+DOMMatrixReadOnly* DOMMatrixReadOnly::fromFloat64Array(DOMFloat64Array* float64Array, ExceptionState& exceptionState)
+{
+    if (float64Array->length() != 6 && float64Array->length() != 16) {
+        exceptionState.throwTypeError("The sequence must contain 6 elements for a 2D matrix or 16 elements for a 3D matrix.");
+        return nullptr;
     }
+    return new DOMMatrixReadOnly(float64Array->data(), float64Array->length());
 }
 
 DOMMatrixReadOnly::~DOMMatrixReadOnly()