Always initialize WindowFeatures.{x|y|width|height}

Source/core/page/WindowFeatures.cpp

Index: Source/core/page/WindowFeatures.cpp
diff --git a/Source/core/page/WindowFeatures.cpp b/Source/core/page/WindowFeatures.cpp
index 3796f0bb496ec6daa0e7d237dde7db250be3e58a..e23c623a23a6d4ea795a9eecf7c7cbc49b55b6b4 100644
--- a/Source/core/page/WindowFeatures.cpp
+++ b/Source/core/page/WindowFeatures.cpp
@@ -37,10 +37,15 @@ static bool isWindowFeaturesSeparator(UChar c)
 }
 
 WindowFeatures::WindowFeatures(const String& features)
-    : xSet(false)
+    : x(0)
+    , xSet(false)
+    , y(0)
     , ySet(false)
+    , width(0)
     , widthSet(false)
+    , height(0)
     , heightSet(false)
+    , resizable(true)
     , fullscreen(false)
     , dialog(false)
 {
@@ -53,13 +58,12 @@ WindowFeatures::WindowFeatures(const String& features)
      We always allow a window to be resized, which is consistent with Firefox.
      */
 
-    if (features.length() == 0) {
+    if (features.isEmpty()) {
         menuBarVisible = true;
         statusBarVisible = true;
         toolBarVisible = true;
         locationBarVisible = true;
         scrollbarsVisible = true;
-        resizable = true;
         return;
     }
 
@@ -68,7 +72,6 @@ WindowFeatures::WindowFeatures(const String& features)
     toolBarVisible = false;
     locationBarVisible = false;
     scrollbarsVisible = false;
-    resizable = true;
 
     // Tread lightly in this code -- it was specifically designed to mimic Win IE's parsing behavior.
     int keyBegin, keyEnd;