Replace ASSERT*() with DCHECK*() in core/xml/.

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

Index: third_party/WebKit/Source/core/xml/XPathParser.cpp
diff --git a/third_party/WebKit/Source/core/xml/XPathParser.cpp b/third_party/WebKit/Source/core/xml/XPathParser.cpp
index c44cbba1446db6b1794bd4da0dffe3f82bab7e28..500b921cf511b499a01e49c7f60503debabd6bb3 100644
--- a/third_party/WebKit/Source/core/xml/XPathParser.cpp
+++ b/third_party/WebKit/Source/core/xml/XPathParser.cpp
@@ -486,7 +486,7 @@ Expression* Parser::parseStatement(const String& statement, XPathNSResolver* res
             exceptionState.throwDOMException(SyntaxError, "The string '" + statement + "' is not a valid XPath expression.");
         return nullptr;
     }
-    ASSERT(m_strings.size() == 0);
+    DCHECK_EQ(m_strings.size(), 0u);
     Expression* result = m_topExpr;
     m_topExpr = nullptr;
 
@@ -495,20 +495,18 @@ Expression* Parser::parseStatement(const String& statement, XPathNSResolver* res
 
 void Parser::registerString(String* s)
 {
-    if (s == 0)
+    if (!s)
         return;
 
-    ASSERT(!m_strings.contains(s));
-
+    DCHECK(!m_strings.contains(s));
     m_strings.add(wrapUnique(s));
 }
 
 void Parser::deleteString(String* s)
 {
-    if (s == 0)
+    if (!s)
         return;
 
-    ASSERT(m_strings.contains(s));
-
+    DCHECK(m_strings.contains(s));
     m_strings.remove(s);
 }