added explicit attributes since constructors have only one argument now.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8267 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/d8-debug.h

@@ -53,7 +53,7 @@ class ReceiverThread;
 // Remote debugging class.
 class RemoteDebugger {
  public:
-  RemoteDebugger(int port)
+  explicit RemoteDebugger(int port)
       : port_(port),
         event_access_(i::OS::CreateMutex()),
         event_available_(i::OS::CreateSemaphore(0)),
@@ -97,7 +97,7 @@ class RemoteDebugger {
 // Thread reading from debugged V8 instance.
 class ReceiverThread: public i::Thread {
  public:
-  ReceiverThread(RemoteDebugger* remote_debugger)
+  explicit ReceiverThread(RemoteDebugger* remote_debugger)
       : Thread("d8:ReceiverThrd"),
         remote_debugger_(remote_debugger) {}
   ~ReceiverThread() {}