Add platform/geometry pretty printers for logging and testing

third_party/WebKit/Source/platform/geometry/LayoutPoint.cpp

Index: third_party/WebKit/Source/platform/geometry/LayoutPoint.cpp
diff --git a/third_party/WebKit/Source/platform/geometry/LayoutPoint.cpp b/third_party/WebKit/Source/platform/geometry/LayoutPoint.cpp
index ce5b6f1c123e3633b8a87ec1ff6aaac732370fcb..e5d394aafca6de8404158dd9ad101eb464219016 100644
--- a/third_party/WebKit/Source/platform/geometry/LayoutPoint.cpp
+++ b/third_party/WebKit/Source/platform/geometry/LayoutPoint.cpp
@@ -8,11 +8,11 @@
 
 namespace blink {
 
-#ifndef NDEBUG
 String LayoutPoint::toString() const
 {
-    return String::format("%f,%f", x().toDouble(), y().toDouble());
+    return String::format("%s,%s",
+        x().toString().ascii().data(),
+        y().toString().ascii().data());
 }
-#endif
 
 } // namespace blink