Removed GetDefaultIsolate{Debugger,ForLocking,StackGuard}.

src/debug-agent.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 211 matching lines @@
       }
     }
 
     // Convert UTF-8 to UTF-16.
     unibrow::Utf8Decoder<128> decoder(msg, StrLength(msg));
     int utf16_length = decoder.Utf16Length();
     ScopedVector<uint16_t> temp(utf16_length + 1);
     decoder.WriteUtf16(temp.start(), utf16_length);
 
     // Send the request received to the debugger.
-    v8::Debug::SendCommand(temp.start(),
+    v8::Debug::SendCommand(reinterpret_cast<v8::Isolate*>(agent_->isolate()),
+                           temp.start(),
                            utf16_length,
-                           NULL,
-                           reinterpret_cast<v8::Isolate*>(agent_->isolate()));
+                           NULL);
 
     if (is_closing_session) {
       // Session is closed.
       agent_->OnSessionClosed(this);
       return;
     }
   }
 }
 
 
@@ skipping 253 matching lines @@
       return total_received;
     }
     total_received += received;
   }
   return total_received;
 }
 
 } }  // namespace v8::internal
 
 #endif  // ENABLE_DEBUGGER_SUPPORT