monitor console command implemented.

Source/core/inspector/InjectedScriptSource.js

Index: Source/core/inspector/InjectedScriptSource.js
diff --git a/Source/core/inspector/InjectedScriptSource.js b/Source/core/inspector/InjectedScriptSource.js
index 0cffd8726f444e947f1a73c93f5c1a98ee00b2d0..a3dea0571ee3bbed8990f67cfa973ab096ccda22 100644
--- a/Source/core/inspector/InjectedScriptSource.js
+++ b/Source/core/inspector/InjectedScriptSource.js
@@ -1154,7 +1154,7 @@ function CommandLineAPI(commandLineAPIImpl, callFrame)
 CommandLineAPI.members_ = [
     "$", "$$", "$x", "dir", "dirxml", "keys", "values", "profile", "profileEnd",
     "monitorEvents", "unmonitorEvents", "inspect", "copy", "clear", "getEventListeners",
-    "debug", "undebug", "table"
+    "debug", "undebug", "monitor", "unmonitor", "table"
 ];
 
 /**
@@ -1313,12 +1313,44 @@ CommandLineAPIImpl.prototype = {
 
     debug: function(fn)
     {
-        InjectedScriptHost.setBreakpoint(fn);
+        var details = InjectedScriptHost.functionDetails(fn);
+        if (!details)
+            return;
+        this._setBreakpoint(details.location, "debug", "");
     },
 
     undebug: function(fn)
     {
-        InjectedScriptHost.removeBreakpoint(fn);
+        this._removeBreakpoint(fn, "debug");
+    },
+
+    monitor: function(fn)
+    {
+        var details = InjectedScriptHost.functionDetails(fn);
+        if (!details)
+            return;
+
+        var name = details.name || details.inferredName || "(anonimous function)";
+        var condition = "console.log(\"function " + name + " called\" + (arguments.length > 0 ? \" with arguments: \" + Array.prototype.join.call(arguments, \", \") : \"\")) && false";
+        this._setBreakpoint(details.location, "monitor", condition);
+    },
+
+    unmonitor: function(fn) {
+        this._removeBreakpoint(fn, "monitor");
+    },
+
+    _setBreakpoint: function(location, source, condition)
+    {
+        InjectedScriptHost.setBreakpoint(location.scriptId, location.lineNumber, location.columnNumber, source, condition);
+    },
+
+    _removeBreakpoint: function(fn, source)
+    {
+        var details = InjectedScriptHost.functionDetails(fn);
+        if (!details)
+            return;
+        var location = details.location;
+        InjectedScriptHost.removeBreakpoint(location.scriptId, location.lineNumber, location.columnNumber, source);
     },
 
     table: function()