[DevTools] breakpoint manager should be ready for location from different model

third_party/WebKit/Source/devtools/front_end/bindings/BreakpointManager.js

 /*
  * Copyright (C) 2011 Google Inc. 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
@@ skipping 792 matching lines @@
       return;
     }
 
     var uiSourceCode = this._breakpoint.uiSourceCode();
     var lineNumber = this._breakpoint._lineNumber;
     var columnNumber = this._breakpoint._columnNumber;
     var condition = this._breakpoint.condition();
 
     var debuggerLocation = uiSourceCode &&
         Bindings.debuggerWorkspaceBinding.uiLocationToRawLocation(uiSourceCode, lineNumber, columnNumber);
+    if (debuggerLocation && debuggerLocation.debuggerModel !== this._debuggerModel)
+      debuggerLocation = null;
     var newState;
     if (this._breakpoint._isRemoved || !this._breakpoint.enabled() || this._scriptDiverged()) {
       newState = null;
     } else if (debuggerLocation) {
       var script = debuggerLocation.script();
       if (script.sourceURL) {
         newState = new Bindings.BreakpointManager.Breakpoint.State(
             script.sourceURL, null, debuggerLocation.lineNumber, debuggerLocation.columnNumber, condition);
       } else {
         newState = new Bindings.BreakpointManager.Breakpoint.State(
@@ skipping 257 matching lines @@
     this.url = breakpoint._url;
     this.lineNumber = breakpoint.lineNumber();
     this.columnNumber = breakpoint.columnNumber();
     this.condition = breakpoint.condition();
     this.enabled = breakpoint.enabled();
   }
 };
 
 /** @type {!Bindings.BreakpointManager} */
 Bindings.breakpointManager;