DevTools: introduce TargetBreakpoints as a presentation of breakpoint and its state within target

LayoutTests/inspector/sources/debugger/breakpoint-manager.html

Index: LayoutTests/inspector/sources/debugger/breakpoint-manager.html
diff --git a/LayoutTests/inspector/sources/debugger/breakpoint-manager.html b/LayoutTests/inspector/sources/debugger/breakpoint-manager.html
index 5ad79ab181e7341eed2e4f662b00f898fe8829d1..e250411c87e9e0a683573e51876eaa98b458691c 100644
--- a/LayoutTests/inspector/sources/debugger/breakpoint-manager.html
+++ b/LayoutTests/inspector/sources/debugger/breakpoint-manager.html
@@ -15,10 +15,8 @@ function test()
             return 1;
         }
     };
-    var targetManager = {
-        targets: function () { return [mockTarget]},
-        observeTargets: function() {}
-    }
+    var targetManager = new WebInspector.TargetManager();
+    targetManager._targets.push(mockTarget);
 
     var defaultMapping = {
         rawLocationToUILocation: function(rawLocation)
@@ -213,11 +211,6 @@ function test()
     }
     DebuggerModelMock.prototype.__proto__ = WebInspector.Object.prototype;
 
-    var dummySetting = {
-        get: function() { return []; },
-        set: function(breakpoints) { }
-    };
-
     function resetWorkspace(breakpointManager)
     {
         InspectorTest.addResult("  Resetting workspace.");
@@ -294,8 +287,6 @@ function test()
         var debuggerModel = new DebuggerModelMock(sourceMapping);
         workspace = new WebInspector.Workspace();
         var breakpointManager = new WebInspector.BreakpointManager(setting, workspace, targetManager);
-        mockTarget.debuggerModel = debuggerModel;
-        breakpointManager.targetAdded(mockTarget);
         breakpointManager._networkWorkspaceBinding = new WebInspector.NetworkWorkspaceBinding(workspace);
         breakpointManager._debuggerProjectDelegate = new WebInspector.DebuggerProjectDelegate(workspace, "debugger:", WebInspector.projectTypes.Debugger);
         breakpointManager.addEventListener(WebInspector.BreakpointManager.Events.BreakpointAdded, breakpointAdded);
@@ -358,7 +349,7 @@ function test()
         dumpBreakpointStorage(breakpointManager);
         InspectorTest.addResult("  Resetting breakpoint manager");
         breakpointManager.removeAllBreakpoints();
-        breakpointManager.removeProvisionalBreakpointsForTest(mockTarget);
+        breakpointManager.removeProvisionalBreakpointsForTest();
         uiSourceCodes = {};
         next();
     }