Rename SmartPointer to SmartArrayPointer.

src/string-stream.cc

Index: src/string-stream.cc
diff --git a/src/string-stream.cc b/src/string-stream.cc
index 9002593bddf6e6184322d85951089d8923b9e5e1..8086cf9515e24f08ec6be2f5954789c84b69c956 100644
--- a/src/string-stream.cc
+++ b/src/string-stream.cc
@@ -252,11 +252,11 @@ void StringStream::Add(const char* format, FmtElm arg0, FmtElm arg1,
 }
 
 
-SmartPointer<const char> StringStream::ToCString() const {
+SmartArrayPointer<const char> StringStream::ToCString() const {
   char* str = NewArray<char>(length_ + 1);
   memcpy(str, buffer_, length_);
   str[length_] = '\0';
-  return SmartPointer<const char>(str);
+  return SmartArrayPointer<const char>(str);
 }