Rename WebNodeCollection to WebElementCollection for clarity

public/web/WebElementCollection.h

Index: public/web/WebElementCollection.h
diff --git a/public/web/WebNodeCollection.h b/public/web/WebElementCollection.h
similarity index 81%
copy from public/web/WebNodeCollection.h
copy to public/web/WebElementCollection.h
index 74938791fb4570b66fe44698203673454f8d29ec..e6eaed571f02bd168284ed4e643a3578647468f7 100644
--- a/public/web/WebNodeCollection.h
+++ b/public/web/WebElementCollection.h
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
+ * Copyright (C) 2014 Samsung Electronics. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -28,8 +29,8 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WebNodeCollection_h
-#define WebNodeCollection_h
+#ifndef WebElementCollection_h
+#define WebElementCollection_h
 
 #include "../platform/WebCommon.h"
 
@@ -42,13 +43,13 @@ namespace blink {
 class WebElement;
 
 // Provides readonly access to some properties of a DOM node.
-class WebNodeCollection {
+class WebElementCollection {
 public:
-    ~WebNodeCollection() { reset(); }
+    ~WebElementCollection() { reset(); }
 
-    WebNodeCollection() : m_private(0), m_current(0) { }
-    WebNodeCollection(const WebNodeCollection& n) : m_private(0) { assign(n); }
-    WebNodeCollection& operator=(const WebNodeCollection& n)
+    WebElementCollection() : m_private(0), m_current(0) { }
+    WebElementCollection(const WebElementCollection& n) : m_private(0) { assign(n); }
+    WebElementCollection& operator=(const WebElementCollection& n)
     {
         assign(n);
         return *this;
@@ -57,14 +58,14 @@ public:
     bool isNull() const { return !m_private; }
 
     BLINK_EXPORT void reset();
-    BLINK_EXPORT void assign(const WebNodeCollection&);
+    BLINK_EXPORT void assign(const WebElementCollection&);
 
     BLINK_EXPORT unsigned length() const;
     BLINK_EXPORT WebElement nextItem() const;
     BLINK_EXPORT WebElement firstItem() const;
 
 #if BLINK_IMPLEMENTATION
-    WebNodeCollection(const WTF::PassRefPtr<WebCore::HTMLCollection>&);
+    WebElementCollection(const WTF::PassRefPtr<WebCore::HTMLCollection>&);
 #endif
 
 private: