[DevTools] make breakpoints better

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 234 matching lines @@
   }
 
   /**
    * @param {!WebInspector.UISourceCode} uiSourceCode
    * @param {number} lineNumber
    * @return {!Array<!WebInspector.BreakpointManager.Breakpoint>}
    */
   findBreakpoints(uiSourceCode, lineNumber) {
     var breakpoints = this._breakpointsForUISourceCode.get(uiSourceCode);
     var lineBreakpoints = breakpoints ? breakpoints.get(lineNumber) : null;
-    return lineBreakpoints ? lineBreakpoints.valuesArray()[0] : [];
+    return lineBreakpoints ? [].concat.apply([], lineBreakpoints.valuesArray()) : [];
   }
 
   /**
    * @param {!WebInspector.UISourceCode} uiSourceCode
    * @param {number} lineNumber
    * @param {number} columnNumber
    * @return {?WebInspector.BreakpointManager.Breakpoint}
    */
   findBreakpoint(uiSourceCode, lineNumber, columnNumber) {
     var breakpoints = this._breakpointsForUISourceCode.get(uiSourceCode);
@@ skipping 825 matching lines @@
     this.sourceFileId = breakpoint._sourceFileId;
     this.lineNumber = breakpoint.lineNumber();
     this.columnNumber = breakpoint.columnNumber();
     this.condition = breakpoint.condition();
     this.enabled = breakpoint.enabled();
   }
 };
 
 /** @type {!WebInspector.BreakpointManager} */
 WebInspector.breakpointManager;