Add platform/transforms pretty printers for logging and testing

third_party/WebKit/Source/platform/testing/TransformPrinters.cpp

Index: third_party/WebKit/Source/platform/testing/TransformPrinters.cpp
diff --git a/third_party/WebKit/Source/platform/testing/TransformPrinters.cpp b/third_party/WebKit/Source/platform/testing/TransformPrinters.cpp
index 1707336a4c6b4b5f926786b2dd17045eebe87a88..ba03cc72f72dc3c7a10a986c44f112c28b650b36 100644
--- a/third_party/WebKit/Source/platform/testing/TransformPrinters.cpp
+++ b/third_party/WebKit/Source/platform/testing/TransformPrinters.cpp
@@ -6,52 +6,19 @@
 
 #include "platform/transforms/AffineTransform.h"
 #include "platform/transforms/TransformationMatrix.h"
+#include "wtf/text/WTFString.h"
 #include <ostream> // NOLINT
 
 namespace blink {
 
 void PrintTo(const AffineTransform& transform, std::ostream* os)
 {
-    AffineTransform::DecomposedType decomposition;
-    if (!transform.decompose(decomposition)) {
-        *os << "AffineTransform(degenerate)";
-        return;
-    }
-
-    if (transform.isIdentityOrTranslation()) {
-        *os << "AffineTransform(translation=(" << decomposition.translateX << "," << decomposition.translateY << "))";
-        return;
-    }
-
-    *os << "AffineTransform("
-        << "translation=(" << decomposition.translateX << "," << decomposition.translateY << ")"
-        << ", scale=(" << decomposition.scaleX << "," << decomposition.scaleY << ")"
-        << ", angle=(" << decomposition.angle << ")"
-        << ", remainder=(" << decomposition.remainderA << "," << decomposition.remainderB << "," << decomposition.remainderC << "," << decomposition.remainderD << ")"
-        << ", translate=(" << decomposition.translateX << "," << decomposition.translateY << ")"
-        << ")";
+    *os << transform.toString();
 }
 
 void PrintTo(const TransformationMatrix& matrix, std::ostream* os)
 {
-    TransformationMatrix::DecomposedType decomposition;
-    if (!matrix.decompose(decomposition)) {
-        *os << "TransformationMatrix(degenerate)";
-        return;
-    }
-
-    if (matrix.isIdentityOrTranslation()) {
-        *os << "TransformationMatrix(translation=(" << decomposition.translateX << "," << decomposition.translateY << "," << decomposition.translateZ << "))";
-        return;
-    }
-
-    *os << "TransformationMatrix("
-        << "translation=(" << decomposition.translateX << "," << decomposition.translateY << "," << decomposition.translateZ << ")"
-        << ", scale=(" << decomposition.scaleX << "," << decomposition.scaleY << "," << decomposition.scaleZ << ")"
-        << ", skew=(" << decomposition.skewXY << "," << decomposition.skewXZ << "," << decomposition.skewYZ << ")"
-        << ", quaternion=(" << decomposition.quaternionX << "," << decomposition.quaternionY << "," << decomposition.quaternionZ << "," << decomposition.quaternionW << ")"
-        << ", perspective=(" << decomposition.perspectiveX << "," << decomposition.perspectiveY << "," << decomposition.perspectiveZ << "," << decomposition.perspectiveW << ")"
-        << ")";
+    *os << matrix.toString();
 }
 
 } // namespace blink