Revert of DevTools: support resolving a UILocation to multiple raw script locations

third_party/WebKit/LayoutTests/inspector/sources/debugger-breakpoints/breakpoint-manager.js

 var initialize_BreakpointManagerTest = function() {
 
 InspectorTest.createWorkspace = function()
 {
     InspectorTest.testTargetManager = new SDK.TargetManager();
     InspectorTest.testWorkspace = new Workspace.Workspace();
     InspectorTest.testNetworkProjectManager = new Bindings.NetworkProjectManager(InspectorTest.testTargetManager, InspectorTest.testWorkspace);
     InspectorTest.testDebuggerWorkspaceBinding = new Bindings.DebuggerWorkspaceBinding(InspectorTest.testTargetManager, InspectorTest.testWorkspace);
 }
 
@@ skipping 17 matching lines @@
 InspectorTest.uiSourceCodes = {};
 
 InspectorTest.initializeDefaultMappingOnTarget = function(target)
 {
     var defaultMapping = {
         rawLocationToUILocation: function(rawLocation)
         {
             return InspectorTest.uiSourceCodes[rawLocation.scriptId].uiLocation(rawLocation.lineNumber, 0);
         },
 
-        uiLocationToRawLocations: function(uiSourceCode, lineNumber)
+        uiLocationToRawLocation: function(uiSourceCode, lineNumber)
         {
             if (!InspectorTest.uiSourceCodes[uiSourceCode.url()])
-                return [];
-            return [new SDK.DebuggerModel.Location(target.debuggerModel, uiSourceCode.url(), lineNumber, 0)];
+                return null;
+            return new SDK.DebuggerModel.Location(target.debuggerModel, uiSourceCode.url(), lineNumber, 0);
         },
 
         isIdentity: function()
         {
             return true;
         }
     };
     target.defaultMapping = defaultMapping;
 }
 
@@ skipping 357 matching lines @@
     }
 
     function finish()
     {
         InspectorTest.dumpBreakpointLocations(breakpointManager);
         next();
     }
 }
 
 }