Replace scoped_ptr with unique_ptr everywhere

webrtc/system_wrappers/include/utf_util_win.h

Index: webrtc/system_wrappers/include/utf_util_win.h
diff --git a/webrtc/system_wrappers/include/utf_util_win.h b/webrtc/system_wrappers/include/utf_util_win.h
index 0e3f2d01c60e977f6246a1d577ebe625da5098f3..730aa4649e17e225fadb622585ab74713db036b4 100644
--- a/webrtc/system_wrappers/include/utf_util_win.h
+++ b/webrtc/system_wrappers/include/utf_util_win.h
@@ -15,6 +15,8 @@
 
 #ifdef WIN32
 #include <windows.h>
+
+#include <memory>
 #include <string>
 
 #include "webrtc/base/scoped_ptr.h"
@@ -24,7 +26,7 @@ namespace webrtc {
 inline std::wstring ToUtf16(const char* utf8, size_t len) {
   int len16 = ::MultiByteToWideChar(CP_UTF8, 0, utf8, static_cast<int>(len),
                                     NULL, 0);
-  rtc::scoped_ptr<wchar_t[]> ws(new wchar_t[len16]);
+  std::unique_ptr<wchar_t[]> ws(new wchar_t[len16]);
   ::MultiByteToWideChar(CP_UTF8, 0, utf8, static_cast<int>(len), ws.get(),
                         len16);
   return std::wstring(ws.get(), len16);
@@ -37,7 +39,7 @@ inline std::wstring ToUtf16(const std::string& str) {
 inline std::string ToUtf8(const wchar_t* wide, size_t len) {
   int len8 = ::WideCharToMultiByte(CP_UTF8, 0, wide, static_cast<int>(len),
                                    NULL, 0, NULL, NULL);
-  rtc::scoped_ptr<char[]> ns(new char[len8]);
+  std::unique_ptr<char[]> ns(new char[len8]);
   ::WideCharToMultiByte(CP_UTF8, 0, wide, static_cast<int>(len), ns.get(), len8,
                         NULL, NULL);
   return std::string(ns.get(), len8);