Set RemoteDebuggingServer port based on "remote-debugging-port" flag.

chromecast/browser/android/cast_window_manager.cc

Index: chromecast/browser/android/cast_window_manager.cc
diff --git a/chromecast/browser/android/cast_window_manager.cc b/chromecast/browser/android/cast_window_manager.cc
index 01fe689b3d5f0926a02e61e1b49360ec667cc038..94a3ff61f3725b39e9604e382426c86e0edb29fa 100644
--- a/chromecast/browser/android/cast_window_manager.cc
+++ b/chromecast/browser/android/cast_window_manager.cc
@@ -78,10 +78,8 @@ void StopCastWindow(JNIEnv* env, jclass clazz,
 
 void EnableDevTools(JNIEnv* env, jclass clazz, jboolean enable) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
-  // The specific port value doesn't matter since Android uses Unix domain
-  // sockets, only whether or not it is zero.
   CastBrowserProcess::GetInstance()->pref_service()->
-      SetInteger(prefs::kRemoteDebuggingPort, enable ? 1 : 0);
+      SetBoolean(prefs::kEnableRemoteDebugging, enable);
 }
 
 }  // namespace shell