[inspector] move changeBreakpointState from debugger-script to native

src/inspector/debugger_script_externs.js

Index: src/inspector/debugger_script_externs.js
diff --git a/src/inspector/debugger_script_externs.js b/src/inspector/debugger_script_externs.js
index c7df61f3f49550bbc2087a9658a74e4e3af29661..63929501ba2ae16421f50165ae67b6cee5ecee8d 100644
--- a/src/inspector/debugger_script_externs.js
+++ b/src/inspector/debugger_script_externs.js
@@ -61,17 +61,6 @@ var JavaScriptCallFrame;
  */
 var Debug = {};
 
-Debug.setBreakOnException = function() {}
-
-Debug.clearBreakOnException = function() {}
-
-Debug.setBreakOnUncaughtException = function() {}
-
-/**
- * @return {undefined}
- */
-Debug.clearBreakOnUncaughtException = function() {}
-
 Debug.clearStepping = function() {}
 
 Debug.clearAllBreakPoints = function() {}