Use a converter for building style value for 'transform'

third_party/WebKit/Source/core/css/CSSMatrix.cpp

Index: third_party/WebKit/Source/core/css/CSSMatrix.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSMatrix.cpp b/third_party/WebKit/Source/core/css/CSSMatrix.cpp
index 156510a5f2e8d2facaafde94cb81cb3980e6a8a0..00e937709f5d0b396e4f059eed02a216d4d57118 100644
--- a/third_party/WebKit/Source/core/css/CSSMatrix.cpp
+++ b/third_party/WebKit/Source/core/css/CSSMatrix.cpp
@@ -77,11 +77,10 @@ void CSSMatrix::setMatrixValue(const String& string,
       return;
 
     DEFINE_STATIC_REF(ComputedStyle, initialStyle, createInitialStyle());
-    TransformOperations operations;
-    TransformBuilder::createTransformOperations(
-        *value, CSSToLengthConversionData(initialStyle, initialStyle,
-                                          LayoutViewItem(nullptr), 1.0f),
-        operations);
+    TransformOperations operations =
+        TransformBuilder::createTransformOperations(
+            *value, CSSToLengthConversionData(initialStyle, initialStyle,
+                                              LayoutViewItem(nullptr), 1.0f));
 
     // Convert transform operations to a TransformationMatrix. This can fail
     // if a param has a percentage ('%')