Use "unsigned" rather than "unsigned long" for C++ code interacting with WebIDL's "unsigned long".

(WebIDL's "unsigned long" is a 32-bit type)

BUG=267360

Review URL: https://codereview.chromium.org/722893002

git-svn-id: svn://svn.chromium.org/blink/trunk@185261 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/xml/XPathResult.cpp

@@ -173,7 +173,7 @@ bool XPathResult::invalidIteratorState() const
     return m_document->domTreeVersion() != m_domTreeVersion;
 }
 
-unsigned long XPathResult::snapshotLength(ExceptionState& exceptionState) const
+unsigned XPathResult::snapshotLength(ExceptionState& exceptionState) const
 {
     if (resultType() != UNORDERED_NODE_SNAPSHOT_TYPE && resultType() != ORDERED_NODE_SNAPSHOT_TYPE) {
         exceptionState.throwTypeError("The result type is not a snapshot.");
@@ -205,7 +205,7 @@ Node* XPathResult::iterateNext(ExceptionState& exceptionState)
     return node;
 }
 
-Node* XPathResult::snapshotItem(unsigned long index, ExceptionState& exceptionState)
+Node* XPathResult::snapshotItem(unsigned index, ExceptionState& exceptionState)
 {
     if (resultType() != UNORDERED_NODE_SNAPSHOT_TYPE && resultType() != ORDERED_NODE_SNAPSHOT_TYPE) {
         exceptionState.throwTypeError("The result type is not a snapshot.");

third_party/WebKit/Source/core/xml/XPathResult.h

@@ -75,9 +75,9 @@ public:
     Node* singleNodeValue(ExceptionState&) const;
 
     bool invalidIteratorState() const;
-    unsigned long snapshotLength(ExceptionState&) const;
+    unsigned snapshotLength(ExceptionState&) const;
     Node* iterateNext(ExceptionState&);
-    Node* snapshotItem(unsigned long index, ExceptionState&);
+    Node* snapshotItem(unsigned index, ExceptionState&);
 
     const XPath::Value& value() const { return m_value; }