Revert of Removing "using" declarations that import names in the C++ Standard library.

Source/core/inspector/DOMPatchSupport.cpp

Index: Source/core/inspector/DOMPatchSupport.cpp
diff --git a/Source/core/inspector/DOMPatchSupport.cpp b/Source/core/inspector/DOMPatchSupport.cpp
index cc2d89df7407042e04489bf488ba358efb4a5bf9..e853b2fc6919aea1b499dee016d4c8eeec226cce 100644
--- a/Source/core/inspector/DOMPatchSupport.cpp
+++ b/Source/core/inspector/DOMPatchSupport.cpp
@@ -54,6 +54,8 @@
 #include "wtf/text/Base64.h"
 #include "wtf/text/CString.h"
 
+using namespace std;
+
 namespace WebCore {
 
 struct DOMPatchSupport::Digest {
@@ -263,8 +265,8 @@
         if (oldIt == oldTable.end() || oldIt->value.size() != 1)
             continue;
 
-        newMap[newIt->value[0]] = std::make_pair(newList[newIt->value[0]].get(), oldIt->value[0]);
-        oldMap[oldIt->value[0]] = std::make_pair(oldList[oldIt->value[0]].get(), newIt->value[0]);
+        newMap[newIt->value[0]] = make_pair(newList[newIt->value[0]].get(), oldIt->value[0]);
+        oldMap[oldIt->value[0]] = make_pair(oldList[oldIt->value[0]].get(), newIt->value[0]);
     }
 
     for (size_t i = 0; newList.size() > 0 && i < newList.size() - 1; ++i) {
@@ -273,8 +275,8 @@
 
         size_t j = newMap[i].second + 1;
         if (j < oldMap.size() && !oldMap[j].first && newList[i + 1]->m_sha1 == oldList[j]->m_sha1) {
-            newMap[i + 1] = std::make_pair(newList[i + 1].get(), j);
-            oldMap[j] = std::make_pair(oldList[j].get(), i + 1);
+            newMap[i + 1] = make_pair(newList[i + 1].get(), j);
+            oldMap[j] = make_pair(oldList[j].get(), i + 1);
         }
     }
 
@@ -284,8 +286,8 @@
 
         size_t j = newMap[i].second - 1;
         if (!oldMap[j].first && newList[i - 1]->m_sha1 == oldList[j]->m_sha1) {
-            newMap[i - 1] = std::make_pair(newList[i - 1].get(), j);
-            oldMap[j] = std::make_pair(oldList[j].get(), i - 1);
+            newMap[i - 1] = make_pair(newList[i - 1].get(), j);
+            oldMap[j] = make_pair(oldList[j].get(), i - 1);
         }
     }
 
@@ -294,7 +296,7 @@
     dumpMap(newMap, "NEW");
 #endif
 
-    return std::make_pair(oldMap, newMap);
+    return make_pair(oldMap, newMap);
 }
 
 bool DOMPatchSupport::innerPatchChildren(ContainerNode* parentNode, const Vector<OwnPtr<Digest> >& oldList, const Vector<OwnPtr<Digest> >& newList, ExceptionState& exceptionState)